21822381

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3571}}^1$

素因数の和:3681

約数の個数: 24

約数和(自身を含む): 36405824

約数和(自身を除く): 14583443

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2037, 3571, 6111, 10713, 24997, 32139, 74991, 224973, 346387, 1039161, 2424709, 3117483, 7274127, 21822381]

約数ペア:

[(1, 21822381), (3, 7274127), (7, 3117483), (9, 2424709), (21, 1039161), (63, 346387), (97, 224973), (291, 74991), (679, 32139), (873, 24997), (2037, 10713), (3571, 6111)]