28796313

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{337}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 47547136

約数和(自身を除く): 18750823

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 313, 337, 939, 1011, 2191, 2359, 4069, 4381, 6573, 7077, 12207, 13143, 28483, 30667, 85449, 92001, 105481, 316443, 738367, 1371253, 2215101, 4113759, 9598771, 28796313]

約数ペア:

[(1, 28796313), (3, 9598771), (7, 4113759), (13, 2215101), (21, 1371253), (39, 738367), (91, 316443), (273, 105481), (313, 92001), (337, 85449), (939, 30667), (1011, 28483), (2191, 13143), (2359, 12207), (4069, 7077), (4381, 6573)]