20487566

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{25169}}^1$

素因数の和:25219

約数の個数: 16

約数和(自身を含む): 34432560

約数和(自身を除く): 13944994

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 25169, 50338, 276859, 553718, 931253, 1862506, 10243783, 20487566]

約数ペア:

[(1, 20487566), (2, 10243783), (11, 1862506), (22, 931253), (37, 553718), (74, 276859), (407, 50338), (814, 25169)]