21132531

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6329}}^1$

素因数の和:6395

約数の個数: 24

約数和(自身を含む): 35549280

約数和(自身を除く): 14416749

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6329, 18987, 44303, 56961, 132909, 335437, 398727, 1006311, 2348059, 3018933, 7044177, 21132531]

約数ペア:

[(1, 21132531), (3, 7044177), (7, 3018933), (9, 2348059), (21, 1006311), (53, 398727), (63, 335437), (159, 132909), (371, 56961), (477, 44303), (1113, 18987), (3339, 6329)]