21036740

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5507}}^1$

素因数の和:5707

約数の個数: 24

約数和(自身を含む): 44416512

約数和(自身を除く): 23379772

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5507, 11014, 22028, 27535, 55070, 110140, 1051837, 2103674, 4207348, 5259185, 10518370, 21036740]

約数ペア:

[(1, 21036740), (2, 10518370), (4, 5259185), (5, 4207348), (10, 2103674), (20, 1051837), (191, 110140), (382, 55070), (764, 27535), (955, 22028), (1910, 11014), (3820, 5507)]