19861304

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3947}}^1$

素因数の和:4007

約数の個数: 32

約数和(自身を含む): 40506480

約数和(自身を除く): 20645176

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 3947, 5032, 7894, 15788, 31576, 67099, 134198, 146039, 268396, 292078, 536792, 584156, 1168312, 2482663, 4965326, 9930652, 19861304]

約数ペア:

[(1, 19861304), (2, 9930652), (4, 4965326), (8, 2482663), (17, 1168312), (34, 584156), (37, 536792), (68, 292078), (74, 268396), (136, 146039), (148, 134198), (296, 67099), (629, 31576), (1258, 15788), (2516, 7894), (3947, 5032)]