1557721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 16

約数和(自身を含む): 1824768

約数和(自身を除く): 267047

約数列:

[1, 11, 23, 47, 131, 253, 517, 1081, 1441, 3013, 6157, 11891, 33143, 67727, 141611, 1557721]

約数ペア:

[(1, 1557721), (11, 141611), (23, 67727), (47, 33143), (131, 11891), (253, 6157), (517, 3013), (1081, 1441)]