21130461

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3499}}^1$

素因数の和:3577

約数の個数: 24

約数和(自身を含む): 33852000

約数和(自身を除く): 12721539

約数列:

[1, 3, 9, 11, 33, 61, 99, 183, 549, 671, 2013, 3499, 6039, 10497, 31491, 38489, 115467, 213439, 346401, 640317, 1920951, 2347829, 7043487, 21130461]

約数ペア:

[(1, 21130461), (3, 7043487), (9, 2347829), (11, 1920951), (33, 640317), (61, 346401), (99, 213439), (183, 115467), (549, 38489), (671, 31491), (2013, 10497), (3499, 6039)]