20925279

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{419}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 10524321

約数列:

[1, 3, 9, 31, 93, 179, 279, 419, 537, 1257, 1611, 3771, 5549, 12989, 16647, 38967, 49941, 75001, 116901, 225003, 675009, 2325031, 6975093, 20925279]

約数ペア:

[(1, 20925279), (3, 6975093), (9, 2325031), (31, 675009), (93, 225003), (179, 116901), (279, 75001), (419, 49941), (537, 38967), (1257, 16647), (1611, 12989), (3771, 5549)]