21652900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 50996736

約数和(自身を除く): 29343836

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 47, 50, 68, 85, 94, 100, 170, 188, 235, 271, 340, 425, 470, 542, 799, 850, 940, 1084, 1175, 1355, 1598, 1700, 2350, 2710, 3196, 3995, 4607, 4700, 5420, 6775, 7990, 9214, 12737, 13550, 15980, 18428, 19975, 23035, 25474, 27100, 39950, 46070, 50948, 63685, 79900, 92140, 115175, 127370, 216529, 230350, 254740, 318425, 433058, 460700, 636850, 866116, 1082645, 1273700, 2165290, 4330580, 5413225, 10826450, 21652900]

約数ペア:

[(1, 21652900), (2, 10826450), (4, 5413225), (5, 4330580), (10, 2165290), (17, 1273700), (20, 1082645), (25, 866116), (34, 636850), (47, 460700), (50, 433058), (68, 318425), (85, 254740), (94, 230350), (100, 216529), (170, 127370), (188, 115175), (235, 92140), (271, 79900), (340, 63685), (425, 50948), (470, 46070), (542, 39950), (799, 27100), (850, 25474), (940, 23035), (1084, 19975), (1175, 18428), (1355, 15980), (1598, 13550), (1700, 12737), (2350, 9214), (2710, 7990), (3196, 6775), (3995, 5420), (4607, 4700)]