21348153

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{953}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 32741280

約数和(自身を除く): 11393127

約数列:

[1, 3, 9, 19, 57, 131, 171, 393, 953, 1179, 2489, 2859, 7467, 8577, 18107, 22401, 54321, 124843, 162963, 374529, 1123587, 2372017, 7116051, 21348153]

約数ペア:

[(1, 21348153), (3, 7116051), (9, 2372017), (19, 1123587), (57, 374529), (131, 162963), (171, 124843), (393, 54321), (953, 22401), (1179, 18107), (2489, 8577), (2859, 7467)]