20656478

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{1579}}^1$

素因数の和:1823

約数の個数: 16

約数和(自身を含む): 32156160

約数和(自身を除く): 11499682

約数列:

[1, 2, 31, 62, 211, 422, 1579, 3158, 6541, 13082, 48949, 97898, 333169, 666338, 10328239, 20656478]

約数ペア:

[(1, 20656478), (2, 10328239), (31, 666338), (62, 333169), (211, 97898), (422, 48949), (1579, 13082), (3158, 6541)]