21801065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{30491}}^1$

素因数の和:30520

約数の個数: 16

約数和(自身を含む): 30735936

約数和(自身を除く): 8934871

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 30491, 152455, 335401, 396383, 1677005, 1981915, 4360213, 21801065]

約数ペア:

[(1, 21801065), (5, 4360213), (11, 1981915), (13, 1677005), (55, 396383), (65, 335401), (143, 152455), (715, 30491)]