21771998

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{3797}}^1$

素因数の和:3907

約数の個数: 16

約数和(自身を含む): 33908544

約数和(自身を除く): 12136546

約数列:

[1, 2, 47, 61, 94, 122, 2867, 3797, 5734, 7594, 178459, 231617, 356918, 463234, 10885999, 21771998]

約数ペア:

[(1, 21771998), (2, 10885999), (47, 463234), (61, 356918), (94, 231617), (122, 178459), (2867, 7594), (3797, 5734)]