28657233

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 19146159

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 151, 213, 243, 297, 453, 639, 781, 891, 1359, 1661, 1917, 2343, 2673, 4077, 4983, 5751, 7029, 10721, 12231, 14949, 17253, 21087, 32163, 36693, 44847, 63261, 96489, 117931, 134541, 189783, 289467, 353793, 403623, 868401, 1061379, 2605203, 3184137, 9552411, 28657233]

約数ペア:

[(1, 28657233), (3, 9552411), (9, 3184137), (11, 2605203), (27, 1061379), (33, 868401), (71, 403623), (81, 353793), (99, 289467), (151, 189783), (213, 134541), (243, 117931), (297, 96489), (453, 63261), (639, 44847), (781, 36693), (891, 32163), (1359, 21087), (1661, 17253), (1917, 14949), (2343, 12231), (2673, 10721), (4077, 7029), (4983, 5751)]