21290131045

素因数分解:

$5^1\times {\mathrm{211}}^1\times {\mathrm{617}}^1\times {\mathrm{32707}}^1$

素因数の和:33540

約数の個数: 16

約数和(自身を含む): 25711627968

約数和(自身を除く): 4421496923

約数列:

[1, 5, 211, 617, 1055, 3085, 32707, 130187, 163535, 650935, 6901177, 20180219, 34505885, 100901095, 4258026209, 21290131045]

約数ペア:

[(1, 21290131045), (5, 4258026209), (211, 100901095), (617, 34505885), (1055, 20180219), (3085, 6901177), (32707, 650935), (130187, 163535)]