21380154

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{499}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 44232000

約数和(自身を除く): 22851846

約数列:

[1, 2, 3, 6, 37, 74, 111, 193, 222, 386, 499, 579, 998, 1158, 1497, 2994, 7141, 14282, 18463, 21423, 36926, 42846, 55389, 96307, 110778, 192614, 288921, 577842, 3563359, 7126718, 10690077, 21380154]

約数ペア:

[(1, 21380154), (2, 10690077), (3, 7126718), (6, 3563359), (37, 577842), (74, 288921), (111, 192614), (193, 110778), (222, 96307), (386, 55389), (499, 42846), (579, 36926), (998, 21423), (1158, 18463), (1497, 14282), (2994, 7141)]