21975320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11689}}^1$

素因数の和:11747

約数の個数: 32

約数和(自身を含む): 50500800

約数和(自身を除く): 28525480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11689, 23378, 46756, 58445, 93512, 116890, 233780, 467560, 549383, 1098766, 2197532, 2746915, 4395064, 5493830, 10987660, 21975320]

約数ペア:

[(1, 21975320), (2, 10987660), (4, 5493830), (5, 4395064), (8, 2746915), (10, 2197532), (20, 1098766), (40, 549383), (47, 467560), (94, 233780), (188, 116890), (235, 93512), (376, 58445), (470, 46756), (940, 23378), (1880, 11689)]