21331098

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16691}}^1$

素因数の和:16770

約数の個数: 24

約数和(自身を含む): 46871136

約数和(自身を除く): 25540038

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16691, 33382, 50073, 100146, 150219, 300438, 1185061, 2370122, 3555183, 7110366, 10665549, 21331098]

約数ペア:

[(1, 21331098), (2, 10665549), (3, 7110366), (6, 3555183), (9, 2370122), (18, 1185061), (71, 300438), (142, 150219), (213, 100146), (426, 50073), (639, 33382), (1278, 16691)]