18813681

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{11423}}^1$

素因数の和:11493

約数の個数: 16

約数和(自身を含む): 28331520

約数和(自身を除く): 9517839

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 11423, 34269, 102807, 308421, 696803, 2090409, 6271227, 18813681]

約数ペア:

[(1, 18813681), (3, 6271227), (9, 2090409), (27, 696803), (61, 308421), (183, 102807), (549, 34269), (1647, 11423)]