19211875

素因数分解:

$5^4\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:600

約数の個数: 20

約数和(自身を含む): 24460920

約数和(自身を除く): 5249045

約数列:

[1, 5, 25, 59, 125, 295, 521, 625, 1475, 2605, 7375, 13025, 30739, 36875, 65125, 153695, 325625, 768475, 3842375, 19211875]

約数ペア:

[(1, 19211875), (5, 3842375), (25, 768475), (59, 325625), (125, 153695), (295, 65125), (521, 36875), (625, 30739), (1475, 13025), (2605, 7375)]