20304878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1657}}^1$

素因数の和:2227

約数の個数: 16

約数和(自身を含む): 33305904

約数和(自身を除く): 13001026

約数列:

[1, 2, 11, 22, 557, 1114, 1657, 3314, 6127, 12254, 18227, 36454, 922949, 1845898, 10152439, 20304878]

約数ペア:

[(1, 20304878), (2, 10152439), (11, 1845898), (22, 922949), (557, 36454), (1114, 18227), (1657, 12254), (3314, 6127)]