21473800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5651}}^1$

素因数の和:5686

約数の個数: 48

約数和(自身を含む): 52563600

約数和(自身を除く): 31089800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5651, 11302, 22604, 28255, 45208, 56510, 107369, 113020, 141275, 214738, 226040, 282550, 429476, 536845, 565100, 858952, 1073690, 1130200, 2147380, 2684225, 4294760, 5368450, 10736900, 21473800]

約数ペア:

[(1, 21473800), (2, 10736900), (4, 5368450), (5, 4294760), (8, 2684225), (10, 2147380), (19, 1130200), (20, 1073690), (25, 858952), (38, 565100), (40, 536845), (50, 429476), (76, 282550), (95, 226040), (100, 214738), (152, 141275), (190, 113020), (200, 107369), (380, 56510), (475, 45208), (760, 28255), (950, 22604), (1900, 11302), (3800, 5651)]