21473360

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5711}}^1$

素因数の和:5771

約数の個数: 40

約数和(自身を含む): 50996736

約数和(自身を除く): 29523376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5711, 11422, 22844, 28555, 45688, 57110, 91376, 114220, 228440, 268417, 456880, 536834, 1073668, 1342085, 2147336, 2684170, 4294672, 5368340, 10736680, 21473360]

約数ペア:

[(1, 21473360), (2, 10736680), (4, 5368340), (5, 4294672), (8, 2684170), (10, 2147336), (16, 1342085), (20, 1073668), (40, 536834), (47, 456880), (80, 268417), (94, 228440), (188, 114220), (235, 91376), (376, 57110), (470, 45688), (752, 28555), (940, 22844), (1880, 11422), (3760, 5711)]