19904264

素因数分解:

$2^3\times {\mathrm{631}}^1\times {\mathrm{3943}}^1$

素因数の和:4580

約数の個数: 16

約数和(自身を含む): 37389120

約数和(自身を除く): 17484856

約数列:

[1, 2, 4, 8, 631, 1262, 2524, 3943, 5048, 7886, 15772, 31544, 2488033, 4976066, 9952132, 19904264]

約数ペア:

[(1, 19904264), (2, 9952132), (4, 4976066), (8, 2488033), (631, 31544), (1262, 15772), (2524, 7886), (3943, 5048)]