16721938

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{1021}}^1$

素因数の和:1473

約数の個数: 16

約数和(自身を含む): 26490240

約数和(自身を除く): 9768302

約数列:

[1, 2, 19, 38, 431, 862, 1021, 2042, 8189, 16378, 19399, 38798, 440051, 880102, 8360969, 16721938]

約数ペア:

[(1, 16721938), (2, 8360969), (19, 880102), (38, 440051), (431, 38798), (862, 19399), (1021, 16378), (2042, 8189)]