20219135

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{643}}^1$

素因数の和:998

約数の個数: 16

約数和(自身を含む): 25656960

約数和(自身を除く): 5437825

約数列:

[1, 5, 19, 95, 331, 643, 1655, 3215, 6289, 12217, 31445, 61085, 212833, 1064165, 4043827, 20219135]

約数ペア:

[(1, 20219135), (5, 4043827), (19, 1064165), (95, 212833), (331, 61085), (643, 31445), (1655, 12217), (3215, 6289)]