13771825

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 18266688

約数和(自身を除く): 4494863

約数列:

[1, 5, 23, 25, 43, 115, 215, 557, 575, 989, 1075, 2785, 4945, 12811, 13925, 23951, 24725, 64055, 119755, 320275, 550873, 598775, 2754365, 13771825]

約数ペア:

[(1, 13771825), (5, 2754365), (23, 598775), (25, 550873), (43, 320275), (115, 119755), (215, 64055), (557, 24725), (575, 23951), (989, 13925), (1075, 12811), (2785, 4945)]