18985568

素因数分解:

$2^5\times 7^1\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:795

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 24124576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 131, 224, 262, 524, 647, 917, 1048, 1294, 1834, 2096, 2588, 3668, 4192, 4529, 5176, 7336, 9058, 10352, 14672, 18116, 20704, 29344, 36232, 72464, 84757, 144928, 169514, 339028, 593299, 678056, 1186598, 1356112, 2373196, 2712224, 4746392, 9492784, 18985568]

約数ペア:

[(1, 18985568), (2, 9492784), (4, 4746392), (7, 2712224), (8, 2373196), (14, 1356112), (16, 1186598), (28, 678056), (32, 593299), (56, 339028), (112, 169514), (131, 144928), (224, 84757), (262, 72464), (524, 36232), (647, 29344), (917, 20704), (1048, 18116), (1294, 14672), (1834, 10352), (2096, 9058), (2588, 7336), (3668, 5176), (4192, 4529)]