21625456

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{20173}}^1$

素因数の和:20248

約数の個数: 20

約数和(自身を含む): 42526792

約数和(自身を除く): 20901336

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 20173, 40346, 80692, 161384, 322768, 1351591, 2703182, 5406364, 10812728, 21625456]

約数ペア:

[(1, 21625456), (2, 10812728), (4, 5406364), (8, 2703182), (16, 1351591), (67, 322768), (134, 161384), (268, 80692), (536, 40346), (1072, 20173)]