19700438

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5209}}^1$

素因数の和:5303

約数の個数: 16

約数和(自身を含む): 31009920

約数和(自身を除く): 11309482

約数列:

[1, 2, 31, 61, 62, 122, 1891, 3782, 5209, 10418, 161479, 317749, 322958, 635498, 9850219, 19700438]

約数ペア:

[(1, 19700438), (2, 9850219), (31, 635498), (61, 322958), (62, 317749), (122, 161479), (1891, 10418), (3782, 5209)]