21353499

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2399}}^1$

素因数の和:2471

約数の個数: 24

約数和(自身を含む): 32947200

約数和(自身を除く): 11593701

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2399, 2967, 7197, 8901, 21591, 55177, 103157, 165531, 309471, 496593, 928413, 2372611, 7117833, 21353499]

約数ペア:

[(1, 21353499), (3, 7117833), (9, 2372611), (23, 928413), (43, 496593), (69, 309471), (129, 165531), (207, 103157), (387, 55177), (989, 21591), (2399, 8901), (2967, 7197)]