28752129

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 49420800

約数和(自身を除く): 20668671

約数列:

[1, 3, 7, 9, 21, 53, 63, 79, 109, 159, 237, 327, 371, 477, 553, 711, 763, 981, 1113, 1659, 2289, 3339, 4187, 4977, 5777, 6867, 8611, 12561, 17331, 25833, 29309, 37683, 40439, 51993, 60277, 77499, 87927, 121317, 180831, 263781, 363951, 456383, 542493, 1369149, 3194681, 4107447, 9584043, 28752129]

約数ペア:

[(1, 28752129), (3, 9584043), (7, 4107447), (9, 3194681), (21, 1369149), (53, 542493), (63, 456383), (79, 363951), (109, 263781), (159, 180831), (237, 121317), (327, 87927), (371, 77499), (477, 60277), (553, 51993), (711, 40439), (763, 37683), (981, 29309), (1113, 25833), (1659, 17331), (2289, 12561), (3339, 8611), (4187, 6867), (4977, 5777)]