31968531

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1112

約数の個数: 36

約数和(自身を含む): 54525744

約数和(自身を除く): 22557213

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 1021, 1491, 3063, 3479, 4473, 7147, 9189, 10437, 21441, 31311, 50029, 64323, 72491, 150087, 217473, 450261, 507437, 652419, 1522311, 3552059, 4566933, 10656177, 31968531]

約数ペア:

[(1, 31968531), (3, 10656177), (7, 4566933), (9, 3552059), (21, 1522311), (49, 652419), (63, 507437), (71, 450261), (147, 217473), (213, 150087), (441, 72491), (497, 64323), (639, 50029), (1021, 31311), (1491, 21441), (3063, 10437), (3479, 9189), (4473, 7147)]