21854043

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{4423}}^1$

素因数の和:4496

約数の個数: 20

約数和(自身を含む): 33188848

約数和(自身を除く): 11334805

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4423, 4941, 13269, 39807, 119421, 269803, 358263, 809409, 2428227, 7284681, 21854043]

約数ペア:

[(1, 21854043), (3, 7284681), (9, 2428227), (27, 809409), (61, 358263), (81, 269803), (183, 119421), (549, 39807), (1647, 13269), (4423, 4941)]