21217608

素因数分解:

$2^3\times 3^2\times {\mathrm{157}}^1\times {\mathrm{1877}}^1$

素因数の和:2046

約数の個数: 48

約数和(自身を含む): 57861180

約数和(自身を除く): 36643572

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 157, 314, 471, 628, 942, 1256, 1413, 1877, 1884, 2826, 3754, 3768, 5631, 5652, 7508, 11262, 11304, 15016, 16893, 22524, 33786, 45048, 67572, 135144, 294689, 589378, 884067, 1178756, 1768134, 2357512, 2652201, 3536268, 5304402, 7072536, 10608804, 21217608]

約数ペア:

[(1, 21217608), (2, 10608804), (3, 7072536), (4, 5304402), (6, 3536268), (8, 2652201), (9, 2357512), (12, 1768134), (18, 1178756), (24, 884067), (36, 589378), (72, 294689), (157, 135144), (314, 67572), (471, 45048), (628, 33786), (942, 22524), (1256, 16893), (1413, 15016), (1877, 11304), (1884, 11262), (2826, 7508), (3754, 5652), (3768, 5631)]