21525111

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{523}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 33106320

約数和(自身を除く): 11581209

約数列:

[1, 3, 9, 17, 51, 153, 269, 523, 807, 1569, 2421, 4573, 4707, 8891, 13719, 26673, 41157, 80019, 140687, 422061, 1266183, 2391679, 7175037, 21525111]

約数ペア:

[(1, 21525111), (3, 7175037), (9, 2391679), (17, 1266183), (51, 422061), (153, 140687), (269, 80019), (523, 41157), (807, 26673), (1569, 13719), (2421, 8891), (4573, 4707)]