17981936

素因数分解:

$2^4\times 7^1\times {\mathrm{160553}}^1$

素因数の和:160568

約数の個数: 20

約数和(自身を含む): 39817392

約数和(自身を除く): 21835456

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 160553, 321106, 642212, 1123871, 1284424, 2247742, 2568848, 4495484, 8990968, 17981936]

約数ペア:

[(1, 17981936), (2, 8990968), (4, 4495484), (7, 2568848), (8, 2247742), (14, 1284424), (16, 1123871), (28, 642212), (56, 321106), (112, 160553)]