209225639

素因数分解:

$7^2\times {\mathrm{37}}^2\times {\mathrm{3119}}^1$

素因数の和:3207

約数の個数: 18

約数和(自身を含む): 250220880

約数和(自身を除く): 40995241

約数列:

[1, 7, 37, 49, 259, 1369, 1813, 3119, 9583, 21833, 67081, 115403, 152831, 807821, 4269911, 5654747, 29889377, 209225639]

約数ペア:

[(1, 209225639), (7, 29889377), (37, 5654747), (49, 4269911), (259, 807821), (1369, 152831), (1813, 115403), (3119, 67081), (9583, 21833)]