20644016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41621}}^1$

素因数の和:41660

約数の個数: 20

約数和(自身を含む): 41289024

約数和(自身を除く): 20645008

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 41621, 83242, 166484, 332968, 665936, 1290251, 2580502, 5161004, 10322008, 20644016]

約数ペア:

[(1, 20644016), (2, 10322008), (4, 5161004), (8, 2580502), (16, 1290251), (31, 665936), (62, 332968), (124, 166484), (248, 83242), (496, 41621)]