21528350

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{9161}}^1$

素因数の和:9220

約数の個数: 24

約数和(自身を含む): 40899168

約数和(自身を除く): 19370818

約数列:

[1, 2, 5, 10, 25, 47, 50, 94, 235, 470, 1175, 2350, 9161, 18322, 45805, 91610, 229025, 430567, 458050, 861134, 2152835, 4305670, 10764175, 21528350]

約数ペア:

[(1, 21528350), (2, 10764175), (5, 4305670), (10, 2152835), (25, 861134), (47, 458050), (50, 430567), (94, 229025), (235, 91610), (470, 45805), (1175, 18322), (2350, 9161)]