31525221

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3121}}^1$

素因数の和:3181

約数の個数: 32

約数和(自身を含む): 53148928

約数和(自身を除く): 21623707

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 3121, 3367, 9363, 10101, 21847, 40573, 65541, 115477, 121719, 284011, 346431, 808339, 852033, 1501201, 2425017, 4503603, 10508407, 31525221]

約数ペア:

[(1, 31525221), (3, 10508407), (7, 4503603), (13, 2425017), (21, 1501201), (37, 852033), (39, 808339), (91, 346431), (111, 284011), (259, 121719), (273, 115477), (481, 65541), (777, 40573), (1443, 21847), (3121, 10101), (3367, 9363)]