21491926

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{2087}}^1$

素因数の和:2379

約数の個数: 16

約数和(自身を含む): 34076160

約数和(自身を除く): 12584234

約数列:

[1, 2, 19, 38, 271, 542, 2087, 4174, 5149, 10298, 39653, 79306, 565577, 1131154, 10745963, 21491926]

約数ペア:

[(1, 21491926), (2, 10745963), (19, 1131154), (38, 565577), (271, 79306), (542, 39653), (2087, 10298), (4174, 5149)]