21579964

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{4909}}^1$

素因数の和:5077

約数の個数: 24

約数和(自身を含む): 43443680

約数和(自身を除く): 21863716

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 4909, 9818, 19636, 34363, 68726, 137452, 770713, 1541426, 3082852, 5394991, 10789982, 21579964]

約数ペア:

[(1, 21579964), (2, 10789982), (4, 5394991), (7, 3082852), (14, 1541426), (28, 770713), (157, 137452), (314, 68726), (628, 34363), (1099, 19636), (2198, 9818), (4396, 4909)]