21427300

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^2\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 54

約数和(自身を含む): 47997362

約数和(自身を除く): 26570062

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 97, 100, 188, 194, 235, 388, 470, 485, 940, 970, 1175, 1940, 2209, 2350, 2425, 4418, 4559, 4700, 4850, 8836, 9118, 9700, 11045, 18236, 22090, 22795, 44180, 45590, 55225, 91180, 110450, 113975, 214273, 220900, 227950, 428546, 455900, 857092, 1071365, 2142730, 4285460, 5356825, 10713650, 21427300]

約数ペア:

[(1, 21427300), (2, 10713650), (4, 5356825), (5, 4285460), (10, 2142730), (20, 1071365), (25, 857092), (47, 455900), (50, 428546), (94, 227950), (97, 220900), (100, 214273), (188, 113975), (194, 110450), (235, 91180), (388, 55225), (470, 45590), (485, 44180), (940, 22795), (970, 22090), (1175, 18236), (1940, 11045), (2209, 9700), (2350, 9118), (2425, 8836), (4418, 4850), (4559, 4700)]