20219704

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{3943}}^1$

素因数の和:4590

約数の個数: 16

約数和(自身を含む): 37980720

約数和(自身を除く): 17761016

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 3943, 5128, 7886, 15772, 31544, 2527463, 5054926, 10109852, 20219704]

約数ペア:

[(1, 20219704), (2, 10109852), (4, 5054926), (8, 2527463), (641, 31544), (1282, 15772), (2564, 7886), (3943, 5128)]