21679225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1019}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 28837440

約数和(自身を除く): 7158215

約数列:

[1, 5, 23, 25, 37, 115, 185, 575, 851, 925, 1019, 4255, 5095, 21275, 23437, 25475, 37703, 117185, 188515, 585925, 867169, 942575, 4335845, 21679225]

約数ペア:

[(1, 21679225), (5, 4335845), (23, 942575), (25, 867169), (37, 585925), (115, 188515), (185, 117185), (575, 37703), (851, 25475), (925, 23437), (1019, 21275), (4255, 5095)]