20381985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34841}}^1$

素因数の和:34865

約数の個数: 24

約数和(自身を含む): 38047464

約数和(自身を除く): 17665479

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 34841, 104523, 174205, 313569, 452933, 522615, 1358799, 1567845, 2264665, 4076397, 6793995, 20381985]

約数ペア:

[(1, 20381985), (3, 6793995), (5, 4076397), (9, 2264665), (13, 1567845), (15, 1358799), (39, 522615), (45, 452933), (65, 313569), (117, 174205), (195, 104523), (585, 34841)]