20121778

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{5531}}^1$

素因数の和:5657

約数の個数: 16

約数和(自身を含む): 32262624

約数和(自身を除く): 12140846

約数列:

[1, 2, 17, 34, 107, 214, 1819, 3638, 5531, 11062, 94027, 188054, 591817, 1183634, 10060889, 20121778]

約数ペア:

[(1, 20121778), (2, 10060889), (17, 1183634), (34, 591817), (107, 188054), (214, 94027), (1819, 11062), (3638, 5531)]