21065930

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{91591}}^1$

素因数の和:91621

約数の個数: 16

約数和(自身を含む): 39567744

約数和(自身を除く): 18501814

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 91591, 183182, 457955, 915910, 2106593, 4213186, 10532965, 21065930]

約数ペア:

[(1, 21065930), (2, 10532965), (5, 4213186), (10, 2106593), (23, 915910), (46, 457955), (115, 183182), (230, 91591)]