21786142

素因数分解:

$2^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{4909}}^1$

素因数の和:5235

約数の個数: 16

約数和(自身を含む): 37473120

約数和(自身を除く): 15686978

約数列:

[1, 2, 7, 14, 317, 634, 2219, 4438, 4909, 9818, 34363, 68726, 1556153, 3112306, 10893071, 21786142]

約数ペア:

[(1, 21786142), (2, 10893071), (7, 3112306), (14, 1556153), (317, 68726), (634, 34363), (2219, 9818), (4438, 4909)]