491491

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:522

約数の個数: 16

約数和(自身を含む): 661248

約数和(自身を除く): 169757

約数列:

[1, 7, 11, 13, 77, 91, 143, 491, 1001, 3437, 5401, 6383, 37807, 44681, 70213, 491491]

約数ペア:

[(1, 491491), (7, 70213), (11, 44681), (13, 37807), (77, 6383), (91, 5401), (143, 3437), (491, 1001)]