28418187

素因数分解:

$3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1993}}^1$

素因数の和:2107

約数の個数: 24

約数和(自身を含む): 44553936

約数和(自身を除く): 16135749

約数列:

[1, 3, 7, 21, 49, 97, 147, 291, 679, 1993, 2037, 4753, 5979, 13951, 14259, 41853, 97657, 193321, 292971, 579963, 1353247, 4059741, 9472729, 28418187]

約数ペア:

[(1, 28418187), (3, 9472729), (7, 4059741), (21, 1353247), (49, 579963), (97, 292971), (147, 193321), (291, 97657), (679, 41853), (1993, 14259), (2037, 13951), (4753, 5979)]