20291553

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{3739}}^1$

素因数の和:3818

約数の個数: 20

約数和(自身を含む): 30772720

約数和(自身を除く): 10481167

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 3739, 5427, 11217, 33651, 100953, 250513, 302859, 751539, 2254617, 6763851, 20291553]

約数ペア:

[(1, 20291553), (3, 6763851), (9, 2254617), (27, 751539), (67, 302859), (81, 250513), (201, 100953), (603, 33651), (1809, 11217), (3739, 5427)]