128210769

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{54581}}^1$

素因数の和:54622

約数の個数: 20

約数和(自身を含む): 198132660

約数和(自身を除く): 69921891

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 54581, 163743, 491229, 1473687, 1582849, 4421061, 4748547, 14245641, 42736923, 128210769]

約数ペア:

[(1, 128210769), (3, 42736923), (9, 14245641), (27, 4748547), (29, 4421061), (81, 1582849), (87, 1473687), (261, 491229), (783, 163743), (2349, 54581)]