21308245

素因数分解:

$5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1453}}^1$

素因数の和:1884

約数の個数: 16

約数和(自身を含む): 29312640

約数和(自身を除く): 8004395

約数列:

[1, 5, 7, 35, 419, 1453, 2095, 2933, 7265, 10171, 14665, 50855, 608807, 3044035, 4261649, 21308245]

約数ペア:

[(1, 21308245), (5, 4261649), (7, 3044035), (35, 608807), (419, 50855), (1453, 14665), (2095, 10171), (2933, 7265)]