20439503

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1489}}^1$

素因数の和:1586

約数の個数: 16

約数和(自身を含む): 24459840

約数和(自身を除く): 4020337

約数列:

[1, 7, 37, 53, 259, 371, 1489, 1961, 10423, 13727, 55093, 78917, 385651, 552419, 2919929, 20439503]

約数ペア:

[(1, 20439503), (7, 2919929), (37, 552419), (53, 385651), (259, 78917), (371, 55093), (1489, 13727), (1961, 10423)]