16881445

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7907}}^1$

素因数の和:7980

約数の個数: 16

約数和(自身を含む): 23534208

約数和(自身を除く): 6652763

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 7907, 39535, 55349, 276745, 482327, 2411635, 3376289, 16881445]

約数ペア:

[(1, 16881445), (5, 3376289), (7, 2411635), (35, 482327), (61, 276745), (305, 55349), (427, 39535), (2135, 7907)]