21425949

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1163}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 32685120

約数和(自身を除く): 11259171

約数列:

[1, 3, 9, 23, 69, 89, 207, 267, 801, 1163, 2047, 3489, 6141, 10467, 18423, 26749, 80247, 103507, 240741, 310521, 931563, 2380661, 7141983, 21425949]

約数ペア:

[(1, 21425949), (3, 7141983), (9, 2380661), (23, 931563), (69, 310521), (89, 240741), (207, 103507), (267, 80247), (801, 26749), (1163, 18423), (2047, 10467), (3489, 6141)]