21235600

素因数分解:

$2^4\times 5^2\times {\mathrm{53089}}^1$

素因数の和:53107

約数の個数: 30

約数和(自身を含む): 51019490

約数和(自身を除く): 29783890

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53089, 106178, 212356, 265445, 424712, 530890, 849424, 1061780, 1327225, 2123560, 2654450, 4247120, 5308900, 10617800, 21235600]

約数ペア:

[(1, 21235600), (2, 10617800), (4, 5308900), (5, 4247120), (8, 2654450), (10, 2123560), (16, 1327225), (20, 1061780), (25, 849424), (40, 530890), (50, 424712), (80, 265445), (100, 212356), (200, 106178), (400, 53089)]