20151621

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3167}}^1$

素因数の和:3281

約数の個数: 24

約数和(自身を含む): 33606144

約数和(自身を除く): 13454523

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 3167, 6363, 9501, 22169, 28503, 66507, 199521, 319867, 959601, 2239069, 2878803, 6717207, 20151621]

約数ペア:

[(1, 20151621), (3, 6717207), (7, 2878803), (9, 2239069), (21, 959601), (63, 319867), (101, 199521), (303, 66507), (707, 28503), (909, 22169), (2121, 9501), (3167, 6363)]