21238252

素因数分解:

$2^2\times 7^1\times {\mathrm{659}}^1\times {\mathrm{1151}}^1$

素因数の和:1821

約数の個数: 24

約数和(自身を含む): 42577920

約数和(自身を除く): 21339668

約数列:

[1, 2, 4, 7, 14, 28, 659, 1151, 1318, 2302, 2636, 4604, 4613, 8057, 9226, 16114, 18452, 32228, 758509, 1517018, 3034036, 5309563, 10619126, 21238252]

約数ペア:

[(1, 21238252), (2, 10619126), (4, 5309563), (7, 3034036), (14, 1517018), (28, 758509), (659, 32228), (1151, 18452), (1318, 16114), (2302, 9226), (2636, 8057), (4604, 4613)]