2197745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1336

約数の個数: 16

約数和(自身を含む): 2972160

約数和(自身を除く): 774415

約数列:

[1, 5, 11, 31, 55, 155, 341, 1289, 1705, 6445, 14179, 39959, 70895, 199795, 439549, 2197745]

約数ペア:

[(1, 2197745), (5, 439549), (11, 199795), (31, 70895), (55, 39959), (155, 14179), (341, 6445), (1289, 1705)]