21249382

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137983}}^1$

素因数の和:138003

約数の個数: 16

約数和(自身を含む): 39739392

約数和(自身を除く): 18490010

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137983, 275966, 965881, 1517813, 1931762, 3035626, 10624691, 21249382]

約数ペア:

[(1, 21249382), (2, 10624691), (7, 3035626), (11, 1931762), (14, 1517813), (22, 965881), (77, 275966), (154, 137983)]