2021851312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{9720439}}^1$

素因数の和:9720460

約数の個数: 20

約数和(自身を含む): 4218670960

約数和(自身を除く): 2196819648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 9720439, 19440878, 38881756, 77763512, 126365707, 155527024, 252731414, 505462828, 1010925656, 2021851312]

約数ペア:

[(1, 2021851312), (2, 1010925656), (4, 505462828), (8, 252731414), (13, 155527024), (16, 126365707), (26, 77763512), (52, 38881756), (104, 19440878), (208, 9720439)]