21000318

素因数分解:

$2^1\times 3^1\times {\mathrm{479}}^1\times {\mathrm{7307}}^1$

素因数の和:7791

約数の個数: 16

約数和(自身を含む): 42094080

約数和(自身を除く): 21093762

約数列:

[1, 2, 3, 6, 479, 958, 1437, 2874, 7307, 14614, 21921, 43842, 3500053, 7000106, 10500159, 21000318]

約数ペア:

[(1, 21000318), (2, 10500159), (3, 7000106), (6, 3500053), (479, 43842), (958, 21921), (1437, 14614), (2874, 7307)]