20781057

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{2341}}^1$

素因数の和:2624

約数の個数: 16

約数和(自身を含む): 30352320

約数和(自身を除く): 9571263

約数列:

[1, 3, 11, 33, 269, 807, 2341, 2959, 7023, 8877, 25751, 77253, 629729, 1889187, 6927019, 20781057]

約数ペア:

[(1, 20781057), (3, 6927019), (11, 1889187), (33, 629729), (269, 77253), (807, 25751), (2341, 8877), (2959, 7023)]