20768145

素因数分解:

$3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{5147}}^1$

素因数の和:5424

約数の個数: 16

約数和(自身を含む): 33359040

約数和(自身を除く): 12590895

約数列:

[1, 3, 5, 15, 269, 807, 1345, 4035, 5147, 15441, 25735, 77205, 1384543, 4153629, 6922715, 20768145]

約数ペア:

[(1, 20768145), (3, 6922715), (5, 4153629), (15, 1384543), (269, 77205), (807, 25735), (1345, 15441), (4035, 5147)]