20807086419

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2137}}^1\times {\mathrm{4177}}^1$

素因数の和:6364

約数の個数: 48

約数和(自身を含む): 35301492928

約数和(自身を除く): 14494406509

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2137, 2331, 4177, 6411, 12531, 14959, 19233, 29239, 37593, 44877, 79069, 87717, 134631, 154549, 237207, 263151, 463647, 553483, 711621, 1081843, 1390941, 1660449, 3245529, 4981347, 8926249, 9736587, 26778747, 62483743, 80336241, 187451229, 330271213, 562353687, 990813639, 2311898491, 2972440917, 6935695473, 20807086419]

約数ペア:

[(1, 20807086419), (3, 6935695473), (7, 2972440917), (9, 2311898491), (21, 990813639), (37, 562353687), (63, 330271213), (111, 187451229), (259, 80336241), (333, 62483743), (777, 26778747), (2137, 9736587), (2331, 8926249), (4177, 4981347), (6411, 3245529), (12531, 1660449), (14959, 1390941), (19233, 1081843), (29239, 711621), (37593, 553483), (44877, 463647), (79069, 263151), (87717, 237207), (134631, 154549)]