18719668

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{38677}}^1$

素因数の和:38703

約数の個数: 18

約数和(自身を含む): 36009218

約数和(自身を除く): 17289550

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 38677, 77354, 154708, 425447, 850894, 1701788, 4679917, 9359834, 18719668]

約数ペア:

[(1, 18719668), (2, 9359834), (4, 4679917), (11, 1701788), (22, 850894), (44, 425447), (121, 154708), (242, 77354), (484, 38677)]