20171805668

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{221873}}^1$

素因数の和:222092

約数の個数: 48

約数和(自身を含む): 42940606464

約数和(自身を除く): 22768800796

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 191, 238, 382, 476, 764, 1337, 2674, 3247, 5348, 6494, 12988, 22729, 45458, 90916, 221873, 443746, 887492, 1553111, 3106222, 3771841, 6212444, 7543682, 15087364, 26402887, 42377743, 52805774, 84755486, 105611548, 169510972, 296644201, 593288402, 720421631, 1186576804, 1440843262, 2881686524, 5042951417, 10085902834, 20171805668]

約数ペア:

[(1, 20171805668), (2, 10085902834), (4, 5042951417), (7, 2881686524), (14, 1440843262), (17, 1186576804), (28, 720421631), (34, 593288402), (68, 296644201), (119, 169510972), (191, 105611548), (238, 84755486), (382, 52805774), (476, 42377743), (764, 26402887), (1337, 15087364), (2674, 7543682), (3247, 6212444), (5348, 3771841), (6494, 3106222), (12988, 1553111), (22729, 887492), (45458, 443746), (90916, 221873)]