20566221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1511}}^1$

素因数の和:1876

約数の個数: 16

約数和(自身を含む): 29635200

約数和(自身を除く): 9068979

約数列:

[1, 3, 13, 39, 349, 1047, 1511, 4533, 4537, 13611, 19643, 58929, 527339, 1582017, 6855407, 20566221]

約数ペア:

[(1, 20566221), (3, 6855407), (13, 1582017), (39, 527339), (349, 58929), (1047, 19643), (1511, 13611), (4533, 4537)]