21620888

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{87181}}^1$

素因数の和:87218

約数の個数: 16

約数和(自身を含む): 41847360

約数和(自身を除く): 20226472

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 87181, 174362, 348724, 697448, 2702611, 5405222, 10810444, 21620888]

約数ペア:

[(1, 21620888), (2, 10810444), (4, 5405222), (8, 2702611), (31, 697448), (62, 348724), (124, 174362), (248, 87181)]