21674211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 33019392

約数和(自身を除く): 11345181

約数列:

[1, 3, 13, 23, 39, 69, 73, 219, 299, 331, 897, 949, 993, 1679, 2847, 4303, 5037, 7613, 12909, 21827, 22839, 24163, 65481, 72489, 98969, 296907, 314119, 555749, 942357, 1667247, 7224737, 21674211]

約数ペア:

[(1, 21674211), (3, 7224737), (13, 1667247), (23, 942357), (39, 555749), (69, 314119), (73, 296907), (219, 98969), (299, 72489), (331, 65481), (897, 24163), (949, 22839), (993, 21827), (1679, 12909), (2847, 7613), (4303, 5037)]