20942864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68891}}^1$

素因数の和:68918

約数の個数: 20

約数和(自身を含む): 42713040

約数和(自身を除く): 21770176

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68891, 137782, 275564, 551128, 1102256, 1308929, 2617858, 5235716, 10471432, 20942864]

約数ペア:

[(1, 20942864), (2, 10471432), (4, 5235716), (8, 2617858), (16, 1308929), (19, 1102256), (38, 551128), (76, 275564), (152, 137782), (304, 68891)]