20591151

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4397}}^1$

素因数の和:4630

約数の個数: 16

約数和(自身を含む): 31524864

約数和(自身を除く): 10933713

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4397, 4683, 13191, 30779, 92337, 980531, 2941593, 6863717, 20591151]

約数ペア:

[(1, 20591151), (3, 6863717), (7, 2941593), (21, 980531), (223, 92337), (669, 30779), (1561, 13191), (4397, 4683)]