20128771

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{359}}^1$

素因数の和:618

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 2853629

約数列:

[1, 13, 19, 227, 247, 359, 2951, 4313, 4667, 6821, 56069, 81493, 88673, 1059409, 1548367, 20128771]

約数ペア:

[(1, 20128771), (13, 1548367), (19, 1059409), (227, 88673), (247, 81493), (359, 56069), (2951, 6821), (4313, 4667)]