21252873

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{1483}}^1$

素因数の和:1784

約数の個数: 16

約数和(自身を含む): 30131136

約数和(自身を除く): 8878263

約数列:

[1, 3, 17, 51, 281, 843, 1483, 4449, 4777, 14331, 25211, 75633, 416723, 1250169, 7084291, 21252873]

約数ペア:

[(1, 21252873), (3, 7084291), (17, 1250169), (51, 416723), (281, 75633), (843, 25211), (1483, 14331), (4449, 4777)]