21701205

素因数分解:

$3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4507}}^1$

素因数の和:4625

約数の個数: 24

約数和(自身を含む): 37975392

約数和(自身を除く): 16274187

約数列:

[1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605, 4507, 4815, 13521, 22535, 40563, 67605, 202815, 482249, 1446747, 2411245, 4340241, 7233735, 21701205]

約数ペア:

[(1, 21701205), (3, 7233735), (5, 4340241), (9, 2411245), (15, 1446747), (45, 482249), (107, 202815), (321, 67605), (535, 40563), (963, 22535), (1605, 13521), (4507, 4815)]