21235149

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{599}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 13036851

約数列:

[1, 3, 9, 13, 27, 39, 101, 117, 303, 351, 599, 909, 1313, 1797, 2727, 3939, 5391, 7787, 11817, 16173, 23361, 35451, 60499, 70083, 181497, 210249, 544491, 786487, 1633473, 2359461, 7078383, 21235149]

約数ペア:

[(1, 21235149), (3, 7078383), (9, 2359461), (13, 1633473), (27, 786487), (39, 544491), (101, 210249), (117, 181497), (303, 70083), (351, 60499), (599, 35451), (909, 23361), (1313, 16173), (1797, 11817), (2727, 7787), (3939, 5391)]