665406

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{5281}}^1$

素因数の和:5296

約数の個数: 24

約数和(自身を含む): 1647984

約数和(自身を除く): 982578

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 5281, 10562, 15843, 31686, 36967, 47529, 73934, 95058, 110901, 221802, 332703, 665406]

約数ペア:

[(1, 665406), (2, 332703), (3, 221802), (6, 110901), (7, 95058), (9, 73934), (14, 47529), (18, 36967), (21, 31686), (42, 15843), (63, 10562), (126, 5281)]