21381666

素因数分解:

$2^1\times 3^1\times {\mathrm{79}}^2\times {\mathrm{571}}^1$

素因数の和:734

約数の個数: 24

約数和(自身を含む): 43387344

約数和(自身を除く): 22005678

約数列:

[1, 2, 3, 6, 79, 158, 237, 474, 571, 1142, 1713, 3426, 6241, 12482, 18723, 37446, 45109, 90218, 135327, 270654, 3563611, 7127222, 10690833, 21381666]

約数ペア:

[(1, 21381666), (2, 10690833), (3, 7127222), (6, 3563611), (79, 270654), (158, 135327), (237, 90218), (474, 45109), (571, 37446), (1142, 18723), (1713, 12482), (3426, 6241)]