21159400

素因数分解:

$2^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{2251}}^1$

素因数の和:2314

約数の個数: 48

約数和(自身を含む): 50264640

約数和(自身を除く): 29105240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 188, 200, 235, 376, 470, 940, 1175, 1880, 2251, 2350, 4502, 4700, 9004, 9400, 11255, 18008, 22510, 45020, 56275, 90040, 105797, 112550, 211594, 225100, 423188, 450200, 528985, 846376, 1057970, 2115940, 2644925, 4231880, 5289850, 10579700, 21159400]

約数ペア:

[(1, 21159400), (2, 10579700), (4, 5289850), (5, 4231880), (8, 2644925), (10, 2115940), (20, 1057970), (25, 846376), (40, 528985), (47, 450200), (50, 423188), (94, 225100), (100, 211594), (188, 112550), (200, 105797), (235, 90040), (376, 56275), (470, 45020), (940, 22510), (1175, 18008), (1880, 11255), (2251, 9400), (2350, 9004), (4502, 4700)]