21081736890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{55337}}^1$

素因数の和:55453

約数の個数: 128

約数和(自身を含む): 60243160320

約数和(自身を除く): 39161423430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 83, 85, 90, 102, 135, 153, 166, 170, 249, 255, 270, 306, 415, 459, 498, 510, 747, 765, 830, 918, 1245, 1411, 1494, 1530, 2241, 2295, 2490, 2822, 3735, 4233, 4482, 4590, 7055, 7470, 8466, 11205, 12699, 14110, 21165, 22410, 25398, 38097, 42330, 55337, 63495, 76194, 110674, 126990, 166011, 190485, 276685, 332022, 380970, 498033, 553370, 830055, 940729, 996066, 1494099, 1660110, 1881458, 2490165, 2822187, 2988198, 4592971, 4703645, 4980330, 5644374, 7470495, 8466561, 9185942, 9407290, 13778913, 14110935, 14940990, 16933122, 22964855, 25399683, 27557826, 28221870, 41336739, 42332805, 45929710, 50799366, 68894565, 78080507, 82673478, 84665610, 124010217, 126998415, 137789130, 156161014, 206683695, 234241521, 248020434, 253996830, 390402535, 413367390, 468483042, 620051085, 702724563, 780805070, 1171207605, 1240102170, 1405449126, 2108173689, 2342415210, 3513622815, 4216347378, 7027245630, 10540868445, 21081736890]

約数ペア:

[(1, 21081736890), (2, 10540868445), (3, 7027245630), (5, 4216347378), (6, 3513622815), (9, 2342415210), (10, 2108173689), (15, 1405449126), (17, 1240102170), (18, 1171207605), (27, 780805070), (30, 702724563), (34, 620051085), (45, 468483042), (51, 413367390), (54, 390402535), (83, 253996830), (85, 248020434), (90, 234241521), (102, 206683695), (135, 156161014), (153, 137789130), (166, 126998415), (170, 124010217), (249, 84665610), (255, 82673478), (270, 78080507), (306, 68894565), (415, 50799366), (459, 45929710), (498, 42332805), (510, 41336739), (747, 28221870), (765, 27557826), (830, 25399683), (918, 22964855), (1245, 16933122), (1411, 14940990), (1494, 14110935), (1530, 13778913), (2241, 9407290), (2295, 9185942), (2490, 8466561), (2822, 7470495), (3735, 5644374), (4233, 4980330), (4482, 4703645), (4590, 4592971), (7055, 2988198), (7470, 2822187), (8466, 2490165), (11205, 1881458), (12699, 1660110), (14110, 1494099), (21165, 996066), (22410, 940729), (25398, 830055), (38097, 553370), (42330, 498033), (55337, 380970), (63495, 332022), (76194, 276685), (110674, 190485), (126990, 166011)]