21371569380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{997739}}^1$

素因数の和:997778

約数の個数: 144

約数和(自身を含む): 78446309760

約数和(自身を除く): 57074740380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3060, 3570, 4284, 5355, 7140, 10710, 21420, 997739, 1995478, 2993217, 3990956, 4988695, 5986434, 6984173, 8979651, 9977390, 11972868, 13968346, 14966085, 16961563, 17959302, 19954780, 20952519, 27936692, 29932170, 33923126, 34920865, 35918604, 41905038, 44898255, 50884689, 59864340, 62857557, 67846252, 69841730, 83810076, 84807815, 89796510, 101769378, 104762595, 118730941, 125715114, 139683460, 152654067, 169615630, 179593020, 203538756, 209525190, 237461882, 251430228, 254423445, 305308134, 314287785, 339231260, 356192823, 419050380, 474923764, 508846890, 593654705, 610616268, 628575570, 712385646, 763270335, 1017693780, 1068578469, 1187309410, 1257151140, 1424771292, 1526540670, 1780964115, 2137156938, 2374618820, 3053081340, 3561928230, 4274313876, 5342892345, 7123856460, 10685784690, 21371569380]

約数ペア:

[(1, 21371569380), (2, 10685784690), (3, 7123856460), (4, 5342892345), (5, 4274313876), (6, 3561928230), (7, 3053081340), (9, 2374618820), (10, 2137156938), (12, 1780964115), (14, 1526540670), (15, 1424771292), (17, 1257151140), (18, 1187309410), (20, 1068578469), (21, 1017693780), (28, 763270335), (30, 712385646), (34, 628575570), (35, 610616268), (36, 593654705), (42, 508846890), (45, 474923764), (51, 419050380), (60, 356192823), (63, 339231260), (68, 314287785), (70, 305308134), (84, 254423445), (85, 251430228), (90, 237461882), (102, 209525190), (105, 203538756), (119, 179593020), (126, 169615630), (140, 152654067), (153, 139683460), (170, 125715114), (180, 118730941), (204, 104762595), (210, 101769378), (238, 89796510), (252, 84807815), (255, 83810076), (306, 69841730), (315, 67846252), (340, 62857557), (357, 59864340), (420, 50884689), (476, 44898255), (510, 41905038), (595, 35918604), (612, 34920865), (630, 33923126), (714, 29932170), (765, 27936692), (1020, 20952519), (1071, 19954780), (1190, 17959302), (1260, 16961563), (1428, 14966085), (1530, 13968346), (1785, 11972868), (2142, 9977390), (2380, 8979651), (3060, 6984173), (3570, 5986434), (4284, 4988695), (5355, 3990956), (7140, 2993217), (10710, 1995478), (21420, 997739)]