216820407

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1\times {\mathrm{3571}}^1$

素因数の和:4158

約数の個数: 16

約数和(自身を含む): 297533312

約数和(自身を除く): 80712905

約数列:

[1, 3, 37, 111, 547, 1641, 3571, 10713, 20239, 60717, 132127, 396381, 1953337, 5860011, 72273469, 216820407]

約数ペア:

[(1, 216820407), (3, 72273469), (37, 5860011), (111, 1953337), (547, 396381), (1641, 132127), (3571, 60717), (10713, 20239)]