21894165

素因数分解:

$3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1277}}^1$

素因数の和:1418

約数の個数: 32

約数和(自身を含む): 39260160

約数和(自身を除く): 17365995

約数列:

[1, 3, 5, 9, 15, 27, 45, 127, 135, 381, 635, 1143, 1277, 1905, 3429, 3831, 5715, 6385, 11493, 17145, 19155, 34479, 57465, 162179, 172395, 486537, 810895, 1459611, 2432685, 4378833, 7298055, 21894165]

約数ペア:

[(1, 21894165), (3, 7298055), (5, 4378833), (9, 2432685), (15, 1459611), (27, 810895), (45, 486537), (127, 172395), (135, 162179), (381, 57465), (635, 34479), (1143, 19155), (1277, 17145), (1905, 11493), (3429, 6385), (3831, 5715)]