21000966510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{677}}^1$

素因数の和:1042

約数の個数: 128

約数和(自身を含む): 52322941440

約数和(自身を除く): 31321974930

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 139, 173, 215, 258, 278, 346, 417, 430, 519, 645, 677, 695, 834, 865, 1038, 1290, 1354, 1390, 1730, 2031, 2085, 2595, 3385, 4062, 4170, 5190, 5977, 6770, 7439, 10155, 11954, 14878, 17931, 20310, 22317, 24047, 29111, 29885, 35862, 37195, 44634, 48094, 58222, 59770, 72141, 74390, 87333, 89655, 94103, 111585, 117121, 120235, 144282, 145555, 174666, 179310, 188206, 223170, 234242, 240470, 282309, 291110, 351363, 360705, 436665, 470515, 564618, 585605, 702726, 721410, 873330, 941030, 1034021, 1171210, 1411545, 1756815, 2068042, 2823090, 3102063, 3513630, 4046429, 5036203, 5170105, 6204126, 8092858, 10072406, 10340210, 12139287, 15108609, 15510315, 16279819, 20232145, 24278574, 25181015, 30217218, 31020630, 32559638, 40464290, 48839457, 50362030, 60696435, 75543045, 81399095, 97678914, 121392870, 151086090, 162798190, 244197285, 488394570, 700032217, 1400064434, 2100096651, 3500161085, 4200193302, 7000322170, 10500483255, 21000966510]

約数ペア:

[(1, 21000966510), (2, 10500483255), (3, 7000322170), (5, 4200193302), (6, 3500161085), (10, 2100096651), (15, 1400064434), (30, 700032217), (43, 488394570), (86, 244197285), (129, 162798190), (139, 151086090), (173, 121392870), (215, 97678914), (258, 81399095), (278, 75543045), (346, 60696435), (417, 50362030), (430, 48839457), (519, 40464290), (645, 32559638), (677, 31020630), (695, 30217218), (834, 25181015), (865, 24278574), (1038, 20232145), (1290, 16279819), (1354, 15510315), (1390, 15108609), (1730, 12139287), (2031, 10340210), (2085, 10072406), (2595, 8092858), (3385, 6204126), (4062, 5170105), (4170, 5036203), (5190, 4046429), (5977, 3513630), (6770, 3102063), (7439, 2823090), (10155, 2068042), (11954, 1756815), (14878, 1411545), (17931, 1171210), (20310, 1034021), (22317, 941030), (24047, 873330), (29111, 721410), (29885, 702726), (35862, 585605), (37195, 564618), (44634, 470515), (48094, 436665), (58222, 360705), (59770, 351363), (72141, 291110), (74390, 282309), (87333, 240470), (89655, 234242), (94103, 223170), (111585, 188206), (117121, 179310), (120235, 174666), (144282, 145555)]