20534031

素因数分解:

$3^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{821}}^1$

素因数の和:1231

約数の個数: 24

約数和(自身を含む): 34024224

約数和(自身を除く): 13490193

約数列:

[1, 3, 7, 9, 21, 63, 397, 821, 1191, 2463, 2779, 3573, 5747, 7389, 8337, 17241, 25011, 51723, 325937, 977811, 2281559, 2933433, 6844677, 20534031]

約数ペア:

[(1, 20534031), (3, 6844677), (7, 2933433), (9, 2281559), (21, 977811), (63, 325937), (397, 51723), (821, 25011), (1191, 17241), (2463, 8337), (2779, 7389), (3573, 5747)]