400759018

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{887}}^1\times {\mathrm{1867}}^1$

素因数の和:2778

約数の個数: 24

約数和(自身を含む): 661854816

約数和(自身を除く): 261095798

約数列:

[1, 2, 11, 22, 121, 242, 887, 1774, 1867, 3734, 9757, 19514, 20537, 41074, 107327, 214654, 225907, 451814, 1656029, 3312058, 18216319, 36432638, 200379509, 400759018]

約数ペア:

[(1, 400759018), (2, 200379509), (11, 36432638), (22, 18216319), (121, 3312058), (242, 1656029), (887, 451814), (1774, 225907), (1867, 214654), (3734, 107327), (9757, 41074), (19514, 20537)]