261749131

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{33179}}^1$

素因数の和:33223

約数の個数: 16

約数和(自身を含む): 318528000

約数和(自身を除く): 56778869

約数列:

[1, 7, 23, 49, 161, 343, 1127, 7889, 33179, 232253, 763117, 1625771, 5341819, 11380397, 37392733, 261749131]

約数ペア:

[(1, 261749131), (7, 37392733), (23, 11380397), (49, 5341819), (161, 1625771), (343, 763117), (1127, 232253), (7889, 33179)]