21009864

素因数分解:

$2^3\times 3^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 54282240

約数和(自身を除く): 33272376

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 61, 113, 122, 127, 183, 226, 244, 254, 339, 366, 381, 452, 488, 508, 678, 732, 762, 904, 1016, 1356, 1464, 1524, 2712, 3048, 6893, 7747, 13786, 14351, 15494, 20679, 23241, 27572, 28702, 30988, 41358, 43053, 46482, 55144, 57404, 61976, 82716, 86106, 92964, 114808, 165432, 172212, 185928, 344424, 875411, 1750822, 2626233, 3501644, 5252466, 7003288, 10504932, 21009864]

約数ペア:

[(1, 21009864), (2, 10504932), (3, 7003288), (4, 5252466), (6, 3501644), (8, 2626233), (12, 1750822), (24, 875411), (61, 344424), (113, 185928), (122, 172212), (127, 165432), (183, 114808), (226, 92964), (244, 86106), (254, 82716), (339, 61976), (366, 57404), (381, 55144), (452, 46482), (488, 43053), (508, 41358), (678, 30988), (732, 28702), (762, 27572), (904, 23241), (1016, 20679), (1356, 15494), (1464, 14351), (1524, 13786), (2712, 7747), (3048, 6893)]