21114440

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3853}}^1$

素因数の和:4001

約数の個数: 32

約数和(自身を含む): 47866680

約数和(自身を除く): 26752240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3853, 5480, 7706, 15412, 19265, 30824, 38530, 77060, 154120, 527861, 1055722, 2111444, 2639305, 4222888, 5278610, 10557220, 21114440]

約数ペア:

[(1, 21114440), (2, 10557220), (4, 5278610), (5, 4222888), (8, 2639305), (10, 2111444), (20, 1055722), (40, 527861), (137, 154120), (274, 77060), (548, 38530), (685, 30824), (1096, 19265), (1370, 15412), (2740, 7706), (3853, 5480)]