155550021

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{18341}}^1$

素因数の和:18612

約数の個数: 16

約数和(自身を含む): 227147328

約数和(自身を除く): 71597307

約数列:

[1, 3, 11, 33, 257, 771, 2827, 8481, 18341, 55023, 201751, 605253, 4713637, 14140911, 51850007, 155550021]

約数ペア:

[(1, 155550021), (3, 51850007), (11, 14140911), (33, 4713637), (257, 605253), (771, 201751), (2827, 55023), (8481, 18341)]