18811017

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{353}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 28274688

約数和(自身を除く): 9463671

約数列:

[1, 3, 9, 31, 93, 191, 279, 353, 573, 1059, 1719, 3177, 5921, 10943, 17763, 32829, 53289, 67423, 98487, 202269, 606807, 2090113, 6270339, 18811017]

約数ペア:

[(1, 18811017), (3, 6270339), (9, 2090113), (31, 606807), (93, 202269), (191, 98487), (279, 67423), (353, 53289), (573, 32829), (1059, 17763), (1719, 10943), (3177, 5921)]