20899115

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1237}}^1$

素因数の和:1382

約数の個数: 16

約数和(自身を含む): 26146560

約数和(自身を除く): 5247445

約数列:

[1, 5, 31, 109, 155, 545, 1237, 3379, 6185, 16895, 38347, 134833, 191735, 674165, 4179823, 20899115]

約数ペア:

[(1, 20899115), (5, 4179823), (31, 674165), (109, 191735), (155, 134833), (545, 38347), (1237, 16895), (3379, 6185)]