21648717

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{839}}^1$

素因数の和:953

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 10849203

約数列:

[1, 3, 9, 47, 61, 141, 183, 423, 549, 839, 2517, 2867, 7551, 8601, 25803, 39433, 51179, 118299, 153537, 354897, 460611, 2405413, 7216239, 21648717]

約数ペア:

[(1, 21648717), (3, 7216239), (9, 2405413), (47, 460611), (61, 354897), (141, 153537), (183, 118299), (423, 51179), (549, 39433), (839, 25803), (2517, 8601), (2867, 7551)]