21064221

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{733}}^1$

素因数の和:873

約数の個数: 24

約数和(自身を含む): 31755776

約数和(自身を除く): 10691555

約数列:

[1, 3, 9, 31, 93, 103, 279, 309, 733, 927, 2199, 3193, 6597, 9579, 22723, 28737, 68169, 75499, 204507, 226497, 679491, 2340469, 7021407, 21064221]

約数ペア:

[(1, 21064221), (3, 7021407), (9, 2340469), (31, 679491), (93, 226497), (103, 204507), (279, 75499), (309, 68169), (733, 28737), (927, 22723), (2199, 9579), (3193, 6597)]