19820403

素因数分解:

$3^3\times {\mathrm{521}}^1\times {\mathrm{1409}}^1$

素因数の和:1939

約数の個数: 16

約数和(自身を含む): 29440800

約数和(自身を除く): 9620397

約数列:

[1, 3, 9, 27, 521, 1409, 1563, 4227, 4689, 12681, 14067, 38043, 734089, 2202267, 6606801, 19820403]

約数ペア:

[(1, 19820403), (3, 6606801), (9, 2202267), (27, 734089), (521, 38043), (1409, 14067), (1563, 12681), (4227, 4689)]