21493185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{12041}}^1$

素因数の和:12073

約数の個数: 32

約数和(自身を含む): 41617152

約数和(自身を除く): 20123967

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 12041, 36123, 60205, 84287, 180615, 204697, 252861, 421435, 614091, 1023485, 1264305, 1432879, 3070455, 4298637, 7164395, 21493185]

約数ペア:

[(1, 21493185), (3, 7164395), (5, 4298637), (7, 3070455), (15, 1432879), (17, 1264305), (21, 1023485), (35, 614091), (51, 421435), (85, 252861), (105, 204697), (119, 180615), (255, 84287), (357, 60205), (595, 36123), (1785, 12041)]