20737118

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:763

約数の個数: 16

約数和(自身を含む): 31615920

約数和(自身を除く): 10878802

約数列:

[1, 2, 101, 202, 251, 409, 502, 818, 25351, 41309, 50702, 82618, 102659, 205318, 10368559, 20737118]

約数ペア:

[(1, 20737118), (2, 10368559), (101, 205318), (202, 102659), (251, 82618), (409, 50702), (502, 41309), (818, 25351)]