20533971

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1063}}^1$

素因数の和:1250

約数の個数: 16

約数和(自身を含む): 28191744

約数和(自身を除く): 7657773

約数列:

[1, 3, 47, 137, 141, 411, 1063, 3189, 6439, 19317, 49961, 145631, 149883, 436893, 6844657, 20533971]

約数ペア:

[(1, 20533971), (3, 6844657), (47, 436893), (137, 149883), (141, 145631), (411, 49961), (1063, 19317), (3189, 6439)]