261644739

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{797}}^1$

素因数の和:1015

約数の個数: 32

約数和(自身を含む): 381278016

約数和(自身を除く): 119633277

約数列:

[1, 3, 17, 41, 51, 123, 157, 471, 697, 797, 2091, 2391, 2669, 6437, 8007, 13549, 19311, 32677, 40647, 98031, 109429, 125129, 328287, 375387, 555509, 1666527, 2127193, 5130289, 6381579, 15390867, 87214913, 261644739]

約数ペア:

[(1, 261644739), (3, 87214913), (17, 15390867), (41, 6381579), (51, 5130289), (123, 2127193), (157, 1666527), (471, 555509), (697, 375387), (797, 328287), (2091, 125129), (2391, 109429), (2669, 98031), (6437, 40647), (8007, 32677), (13549, 19311)]