261921309

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{291997}}^1$

素因数の和:292036

約数の個数: 16

約数和(自身を含む): 392445312

約数和(自身を除く): 130524003

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 291997, 875991, 3795961, 6715931, 11387883, 20147793, 87307103, 261921309]

約数ペア:

[(1, 261921309), (3, 87307103), (13, 20147793), (23, 11387883), (39, 6715931), (69, 3795961), (299, 875991), (897, 291997)]