68987908

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{142537}}^1$

素因数の和:142563

約数の個数: 18

約数和(自身を含む): 132702878

約数和(自身を除く): 63714970

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 142537, 285074, 570148, 1567907, 3135814, 6271628, 17246977, 34493954, 68987908]

約数ペア:

[(1, 68987908), (2, 34493954), (4, 17246977), (11, 6271628), (22, 3135814), (44, 1567907), (121, 570148), (242, 285074), (484, 142537)]