20181776

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21379}}^1$

素因数の和:21446

約数の個数: 20

約数和(自身を含む): 39766800

約数和(自身を除く): 19585024

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21379, 42758, 85516, 171032, 342064, 1261361, 2522722, 5045444, 10090888, 20181776]

約数ペア:

[(1, 20181776), (2, 10090888), (4, 5045444), (8, 2522722), (16, 1261361), (59, 342064), (118, 171032), (236, 85516), (472, 42758), (944, 21379)]