20485702017

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{3847}}^1$

素因数の和:4051

約数の個数: 72

約数和(自身を含む): 34306459200

約数和(自身を除く): 13820757183

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 149, 171, 209, 361, 447, 627, 1083, 1341, 1639, 1881, 2831, 3249, 3847, 3971, 4917, 8493, 11541, 11913, 14751, 25479, 31141, 34623, 35739, 42317, 53789, 73093, 93423, 126951, 161367, 219279, 280269, 380853, 484101, 573203, 591679, 657837, 804023, 1388767, 1719609, 1775037, 2412069, 4166301, 5158827, 5325111, 6305233, 7236207, 10890857, 12498903, 15276437, 18915699, 32672571, 45829311, 56747097, 98017713, 119799427, 137487933, 206926283, 359398281, 620778849, 1078194843, 1862336547, 2276189113, 6828567339, 20485702017]

約数ペア:

[(1, 20485702017), (3, 6828567339), (9, 2276189113), (11, 1862336547), (19, 1078194843), (33, 620778849), (57, 359398281), (99, 206926283), (149, 137487933), (171, 119799427), (209, 98017713), (361, 56747097), (447, 45829311), (627, 32672571), (1083, 18915699), (1341, 15276437), (1639, 12498903), (1881, 10890857), (2831, 7236207), (3249, 6305233), (3847, 5325111), (3971, 5158827), (4917, 4166301), (8493, 2412069), (11541, 1775037), (11913, 1719609), (14751, 1388767), (25479, 804023), (31141, 657837), (34623, 591679), (35739, 573203), (42317, 484101), (53789, 380853), (73093, 280269), (93423, 219279), (126951, 161367)]