1997645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 2623152

約数和(自身を除く): 625507

約数列:

[1, 5, 13, 65, 73, 365, 421, 949, 2105, 4745, 5473, 27365, 30733, 153665, 399529, 1997645]

約数ペア:

[(1, 1997645), (5, 399529), (13, 153665), (65, 30733), (73, 27365), (365, 5473), (421, 4745), (949, 2105)]