19684925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1637}}^1$

素因数の和:1697

約数の個数: 24

約数和(自身を含む): 27013896

約数和(自身を除く): 7328971

約数列:

[1, 5, 13, 25, 37, 65, 185, 325, 481, 925, 1637, 2405, 8185, 12025, 21281, 40925, 60569, 106405, 302845, 532025, 787397, 1514225, 3936985, 19684925]

約数ペア:

[(1, 19684925), (5, 3936985), (13, 1514225), (25, 787397), (37, 532025), (65, 302845), (185, 106405), (325, 60569), (481, 40925), (925, 21281), (1637, 12025), (2405, 8185)]