21200

素因数分解:

$2^4\times 5^2\times {\mathrm{53}}^1$

素因数の和:71

約数の個数: 30

約数和(自身を含む): 51894

約数和(自身を除く): 30694

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 80, 100, 106, 200, 212, 265, 400, 424, 530, 848, 1060, 1325, 2120, 2650, 4240, 5300, 10600, 21200]

約数ペア:

[(1, 21200), (2, 10600), (4, 5300), (5, 4240), (8, 2650), (10, 2120), (16, 1325), (20, 1060), (25, 848), (40, 530), (50, 424), (53, 400), (80, 265), (100, 212), (106, 200)]