20538999

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{503}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 32104800

約数和(自身を除く): 11565801

約数列:

[1, 3, 9, 13, 39, 117, 349, 503, 1047, 1509, 3141, 4527, 4537, 6539, 13611, 19617, 40833, 58851, 175547, 526641, 1579923, 2282111, 6846333, 20538999]

約数ペア:

[(1, 20538999), (3, 6846333), (9, 2282111), (13, 1579923), (39, 526641), (117, 175547), (349, 58851), (503, 40833), (1047, 19617), (1509, 13611), (3141, 6539), (4527, 4537)]