28011978

素因数分解:

$2^1\times 3^2\times {\mathrm{79}}^1\times {\mathrm{19699}}^1$

素因数の和:19786

約数の個数: 24

約数和(自身を含む): 61464000

約数和(自身を除く): 33452022

約数列:

[1, 2, 3, 6, 9, 18, 79, 158, 237, 474, 711, 1422, 19699, 39398, 59097, 118194, 177291, 354582, 1556221, 3112442, 4668663, 9337326, 14005989, 28011978]

約数ペア:

[(1, 28011978), (2, 14005989), (3, 9337326), (6, 4668663), (9, 3112442), (18, 1556221), (79, 354582), (158, 177291), (237, 118194), (474, 59097), (711, 39398), (1422, 19699)]