21507985380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{7829}}^1$

素因数の和:8090

約数の個数: 192

約数和(自身を含む): 71391559680

約数和(自身を除く): 49883574300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 211, 217, 310, 372, 420, 422, 434, 465, 620, 633, 651, 844, 868, 930, 1055, 1085, 1266, 1302, 1477, 1860, 2110, 2170, 2532, 2604, 2954, 3165, 3255, 4220, 4340, 4431, 5908, 6330, 6510, 6541, 7385, 7829, 8862, 12660, 13020, 13082, 14770, 15658, 17724, 19623, 22155, 23487, 26164, 29540, 31316, 32705, 39145, 39246, 44310, 45787, 46974, 54803, 65410, 78290, 78492, 88620, 91574, 93948, 98115, 109606, 117435, 130820, 137361, 156580, 164409, 183148, 196230, 219212, 228935, 234870, 242699, 274015, 274722, 328818, 392460, 457870, 469740, 485398, 548030, 549444, 657636, 686805, 728097, 822045, 915740, 970796, 1096060, 1213495, 1373610, 1456194, 1644090, 1651919, 1698893, 2426990, 2747220, 2912388, 3288180, 3303838, 3397786, 3640485, 4853980, 4955757, 5096679, 6607676, 6795572, 7280970, 8259595, 8494465, 9911514, 10193358, 11563433, 14561940, 16519190, 16988930, 19823028, 20386716, 23126866, 24778785, 25483395, 33038380, 33977860, 34690299, 46253732, 49557570, 50966790, 51209489, 57817165, 69380598, 99115140, 101933580, 102418978, 115634330, 138761196, 153628467, 173451495, 204837956, 231268660, 256047445, 307256934, 346902990, 358466423, 512094890, 614513868, 693805980, 716932846, 768142335, 1024189780, 1075399269, 1433865692, 1536284670, 1792332115, 2150798538, 3072569340, 3584664230, 4301597076, 5376996345, 7169328460, 10753992690, 21507985380]

約数ペア:

[(1, 21507985380), (2, 10753992690), (3, 7169328460), (4, 5376996345), (5, 4301597076), (6, 3584664230), (7, 3072569340), (10, 2150798538), (12, 1792332115), (14, 1536284670), (15, 1433865692), (20, 1075399269), (21, 1024189780), (28, 768142335), (30, 716932846), (31, 693805980), (35, 614513868), (42, 512094890), (60, 358466423), (62, 346902990), (70, 307256934), (84, 256047445), (93, 231268660), (105, 204837956), (124, 173451495), (140, 153628467), (155, 138761196), (186, 115634330), (210, 102418978), (211, 101933580), (217, 99115140), (310, 69380598), (372, 57817165), (420, 51209489), (422, 50966790), (434, 49557570), (465, 46253732), (620, 34690299), (633, 33977860), (651, 33038380), (844, 25483395), (868, 24778785), (930, 23126866), (1055, 20386716), (1085, 19823028), (1266, 16988930), (1302, 16519190), (1477, 14561940), (1860, 11563433), (2110, 10193358), (2170, 9911514), (2532, 8494465), (2604, 8259595), (2954, 7280970), (3165, 6795572), (3255, 6607676), (4220, 5096679), (4340, 4955757), (4431, 4853980), (5908, 3640485), (6330, 3397786), (6510, 3303838), (6541, 3288180), (7385, 2912388), (7829, 2747220), (8862, 2426990), (12660, 1698893), (13020, 1651919), (13082, 1644090), (14770, 1456194), (15658, 1373610), (17724, 1213495), (19623, 1096060), (22155, 970796), (23487, 915740), (26164, 822045), (29540, 728097), (31316, 686805), (32705, 657636), (39145, 549444), (39246, 548030), (44310, 485398), (45787, 469740), (46974, 457870), (54803, 392460), (65410, 328818), (78290, 274722), (78492, 274015), (88620, 242699), (91574, 234870), (93948, 228935), (98115, 219212), (109606, 196230), (117435, 183148), (130820, 164409), (137361, 156580)]