20218233

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1741}}^1$

素因数の和:1837

約数の個数: 24

約数和(自身を含む): 31774080

約数和(自身を除く): 11555847

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 1741, 3871, 5223, 11613, 12187, 36561, 85309, 137539, 255927, 412617, 962773, 2888319, 6739411, 20218233]

約数ペア:

[(1, 20218233), (3, 6739411), (7, 2888319), (21, 962773), (49, 412617), (79, 255927), (147, 137539), (237, 85309), (553, 36561), (1659, 12187), (1741, 11613), (3871, 5223)]