19893856

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 40960080

約数和(自身を除く): 21066224

約数列:

[1, 2, 4, 8, 16, 32, 41, 59, 82, 118, 164, 236, 257, 328, 472, 514, 656, 944, 1028, 1312, 1888, 2056, 2419, 4112, 4838, 8224, 9676, 10537, 15163, 19352, 21074, 30326, 38704, 42148, 60652, 77408, 84296, 121304, 168592, 242608, 337184, 485216, 621683, 1243366, 2486732, 4973464, 9946928, 19893856]

約数ペア:

[(1, 19893856), (2, 9946928), (4, 4973464), (8, 2486732), (16, 1243366), (32, 621683), (41, 485216), (59, 337184), (82, 242608), (118, 168592), (164, 121304), (236, 84296), (257, 77408), (328, 60652), (472, 42148), (514, 38704), (656, 30326), (944, 21074), (1028, 19352), (1312, 15163), (1888, 10537), (2056, 9676), (2419, 8224), (4112, 4838)]