20616872

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{6301}}^1$

素因数の和:6716

約数の個数: 16

約数和(自身を含む): 38757300

約数和(自身を除く): 18140428

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 6301, 12602, 25204, 50408, 2577109, 5154218, 10308436, 20616872]

約数ペア:

[(1, 20616872), (2, 10308436), (4, 5154218), (8, 2577109), (409, 50408), (818, 25204), (1636, 12602), (3272, 6301)]