21560025

素因数分解:

$3^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1831}}^1$

素因数の和:2001

約数の個数: 24

約数和(自身を含む): 35892544

約数和(自身を除く): 14332519

約数列:

[1, 3, 5, 15, 25, 75, 157, 471, 785, 1831, 2355, 3925, 5493, 9155, 11775, 27465, 45775, 137325, 287467, 862401, 1437335, 4312005, 7186675, 21560025]

約数ペア:

[(1, 21560025), (3, 7186675), (5, 4312005), (15, 1437335), (25, 862401), (75, 287467), (157, 137325), (471, 45775), (785, 27465), (1831, 11775), (2355, 9155), (3925, 5493)]