19880912

素因数分解:

$2^4\times {\mathrm{1021}}^1\times {\mathrm{1217}}^1$

素因数の和:2246

約数の個数: 20

約数和(自身を含む): 38588676

約数和(自身を除く): 18707764

約数列:

[1, 2, 4, 8, 16, 1021, 1217, 2042, 2434, 4084, 4868, 8168, 9736, 16336, 19472, 1242557, 2485114, 4970228, 9940456, 19880912]

約数ペア:

[(1, 19880912), (2, 9940456), (4, 4970228), (8, 2485114), (16, 1242557), (1021, 19472), (1217, 16336), (2042, 9736), (2434, 8168), (4084, 4868)]