15391221

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{991}}^1$

素因数の和:1192

約数の個数: 16

約数和(自身を含む): 21331968

約数和(自身を除く): 5940747

約数列:

[1, 3, 31, 93, 167, 501, 991, 2973, 5177, 15531, 30721, 92163, 165497, 496491, 5130407, 15391221]

約数ペア:

[(1, 15391221), (3, 5130407), (31, 496491), (93, 165497), (167, 92163), (501, 30721), (991, 15531), (2973, 5177)]