20817586

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{1999}}^1$

素因数の和:2169

約数の個数: 16

約数和(自身を含む): 32256000

約数和(自身を除く): 11438414

約数列:

[1, 2, 41, 82, 127, 254, 1999, 3998, 5207, 10414, 81959, 163918, 253873, 507746, 10408793, 20817586]

約数ペア:

[(1, 20817586), (2, 10408793), (41, 507746), (82, 253873), (127, 163918), (254, 81959), (1999, 10414), (3998, 5207)]