21775950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 144

約数和(自身を含む): 69328896

約数和(自身を除く): 47552946

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 31, 35, 42, 45, 50, 62, 63, 70, 75, 90, 93, 105, 126, 150, 155, 175, 186, 210, 217, 223, 225, 279, 310, 315, 350, 434, 446, 450, 465, 525, 558, 630, 651, 669, 775, 930, 1050, 1085, 1115, 1302, 1338, 1395, 1550, 1561, 1575, 1953, 2007, 2170, 2230, 2325, 2790, 3122, 3150, 3255, 3345, 3906, 4014, 4650, 4683, 5425, 5575, 6510, 6690, 6913, 6975, 7805, 9366, 9765, 10035, 10850, 11150, 13826, 13950, 14049, 15610, 16275, 16725, 19530, 20070, 20739, 23415, 28098, 32550, 33450, 34565, 39025, 41478, 46830, 48391, 48825, 50175, 62217, 69130, 70245, 78050, 96782, 97650, 100350, 103695, 117075, 124434, 140490, 145173, 172825, 207390, 234150, 241955, 290346, 311085, 345650, 351225, 435519, 483910, 518475, 622170, 702450, 725865, 871038, 1036950, 1209775, 1451730, 1555425, 2177595, 2419550, 3110850, 3629325, 4355190, 7258650, 10887975, 21775950]

約数ペア:

[(1, 21775950), (2, 10887975), (3, 7258650), (5, 4355190), (6, 3629325), (7, 3110850), (9, 2419550), (10, 2177595), (14, 1555425), (15, 1451730), (18, 1209775), (21, 1036950), (25, 871038), (30, 725865), (31, 702450), (35, 622170), (42, 518475), (45, 483910), (50, 435519), (62, 351225), (63, 345650), (70, 311085), (75, 290346), (90, 241955), (93, 234150), (105, 207390), (126, 172825), (150, 145173), (155, 140490), (175, 124434), (186, 117075), (210, 103695), (217, 100350), (223, 97650), (225, 96782), (279, 78050), (310, 70245), (315, 69130), (350, 62217), (434, 50175), (446, 48825), (450, 48391), (465, 46830), (525, 41478), (558, 39025), (630, 34565), (651, 33450), (669, 32550), (775, 28098), (930, 23415), (1050, 20739), (1085, 20070), (1115, 19530), (1302, 16725), (1338, 16275), (1395, 15610), (1550, 14049), (1561, 13950), (1575, 13826), (1953, 11150), (2007, 10850), (2170, 10035), (2230, 9765), (2325, 9366), (2790, 7805), (3122, 6975), (3150, 6913), (3255, 6690), (3345, 6510), (3906, 5575), (4014, 5425), (4650, 4683)]