21936747

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{1087}}^1$

素因数の和:1159

約数の個数: 24

約数和(自身を含む): 34572288

約数和(自身を除く): 12635541

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 961, 1087, 2883, 3261, 6727, 7609, 20181, 22827, 33697, 101091, 235879, 707637, 1044607, 3133821, 7312249, 21936747]

約数ペア:

[(1, 21936747), (3, 7312249), (7, 3133821), (21, 1044607), (31, 707637), (93, 235879), (217, 101091), (651, 33697), (961, 22827), (1087, 20181), (2883, 7609), (3261, 6727)]