12981775

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 17034624

約数和(自身を除く): 4052849

約数列:

[1, 5, 23, 25, 107, 115, 211, 535, 575, 1055, 2461, 2675, 4853, 5275, 12305, 22577, 24265, 61525, 112885, 121325, 519271, 564425, 2596355, 12981775]

約数ペア:

[(1, 12981775), (5, 2596355), (23, 564425), (25, 519271), (107, 121325), (115, 112885), (211, 61525), (535, 24265), (575, 22577), (1055, 12305), (2461, 5275), (2675, 4853)]