20577978

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 45953856

約数和(自身を除く): 25375878

約数列:

[1, 2, 3, 6, 9, 18, 67, 113, 134, 151, 201, 226, 302, 339, 402, 453, 603, 678, 906, 1017, 1206, 1359, 2034, 2718, 7571, 10117, 15142, 17063, 20234, 22713, 30351, 34126, 45426, 51189, 60702, 68139, 91053, 102378, 136278, 153567, 182106, 307134, 1143221, 2286442, 3429663, 6859326, 10288989, 20577978]

約数ペア:

[(1, 20577978), (2, 10288989), (3, 6859326), (6, 3429663), (9, 2286442), (18, 1143221), (67, 307134), (113, 182106), (134, 153567), (151, 136278), (201, 102378), (226, 91053), (302, 68139), (339, 60702), (402, 51189), (453, 45426), (603, 34126), (678, 30351), (906, 22713), (1017, 20234), (1206, 17063), (1359, 15142), (2034, 10117), (2718, 7571)]