258220557

素因数分解:

$3^2\times 7^1\times {\mathrm{1571}}^1\times {\mathrm{2609}}^1$

素因数の和:4193

約数の個数: 24

約数和(自身を含む): 426703680

約数和(自身を除く): 168483123

約数列:

[1, 3, 7, 9, 21, 63, 1571, 2609, 4713, 7827, 10997, 14139, 18263, 23481, 32991, 54789, 98973, 164367, 4098739, 12296217, 28691173, 36888651, 86073519, 258220557]

約数ペア:

[(1, 258220557), (3, 86073519), (7, 36888651), (9, 28691173), (21, 12296217), (63, 4098739), (1571, 164367), (2609, 98973), (4713, 54789), (7827, 32991), (10997, 23481), (14139, 18263)]