21992748

素因数分解:

$2^2\times 3^1\times {\mathrm{409}}^1\times {\mathrm{4481}}^1$

素因数の和:4897

約数の個数: 24

約数和(自身を含む): 51453360

約数和(自身を除く): 29460612

約数列:

[1, 2, 3, 4, 6, 12, 409, 818, 1227, 1636, 2454, 4481, 4908, 8962, 13443, 17924, 26886, 53772, 1832729, 3665458, 5498187, 7330916, 10996374, 21992748]

約数ペア:

[(1, 21992748), (2, 10996374), (3, 7330916), (4, 5498187), (6, 3665458), (12, 1832729), (409, 53772), (818, 26886), (1227, 17924), (1636, 13443), (2454, 8962), (4481, 4908)]