21719024

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{5009}}^1$

素因数の和:5288

約数の個数: 20

約数和(自身を含む): 42244320

約数和(自身を除く): 20525296

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 5009, 10018, 20036, 40072, 80144, 1357439, 2714878, 5429756, 10859512, 21719024]

約数ペア:

[(1, 21719024), (2, 10859512), (4, 5429756), (8, 2714878), (16, 1357439), (271, 80144), (542, 40072), (1084, 20036), (2168, 10018), (4336, 5009)]