19820776

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{8573}}^1$

素因数の和:8613

約数の個数: 24

約数和(自身を含む): 39483270

約数和(自身を除く): 19662494

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 8573, 17146, 34292, 68584, 145741, 291482, 582964, 1165928, 2477597, 4955194, 9910388, 19820776]

約数ペア:

[(1, 19820776), (2, 9910388), (4, 4955194), (8, 2477597), (17, 1165928), (34, 582964), (68, 291482), (136, 145741), (289, 68584), (578, 34292), (1156, 17146), (2312, 8573)]