21435760

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5701}}^1$

素因数の和:5761

約数の個数: 40

約数和(自身を含む): 50907456

約数和(自身を除く): 29471696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5701, 11402, 22804, 28505, 45608, 57010, 91216, 114020, 228040, 267947, 456080, 535894, 1071788, 1339735, 2143576, 2679470, 4287152, 5358940, 10717880, 21435760]

約数ペア:

[(1, 21435760), (2, 10717880), (4, 5358940), (5, 4287152), (8, 2679470), (10, 2143576), (16, 1339735), (20, 1071788), (40, 535894), (47, 456080), (80, 267947), (94, 228040), (188, 114020), (235, 91216), (376, 57010), (470, 45608), (752, 28505), (940, 22804), (1880, 11402), (3760, 5701)]