20681331

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{7933}}^1$

素因数の和:8026

約数の個数: 16

約数和(自身を含む): 30466560

約数和(自身を除く): 9785229

約数列:

[1, 3, 11, 33, 79, 237, 869, 2607, 7933, 23799, 87263, 261789, 626707, 1880121, 6893777, 20681331]

約数ペア:

[(1, 20681331), (3, 6893777), (11, 1880121), (33, 626707), (79, 261789), (237, 87263), (869, 23799), (2607, 7933)]