18220055

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{4099}}^1$

素因数の和:4238

約数の個数: 16

約数和(自身を含む): 25190400

約数和(自身を除く): 6970345

約数列:

[1, 5, 7, 35, 127, 635, 889, 4099, 4445, 20495, 28693, 143465, 520573, 2602865, 3644011, 18220055]

約数ペア:

[(1, 18220055), (5, 3644011), (7, 2602865), (35, 520573), (127, 143465), (635, 28693), (889, 20495), (4099, 4445)]