20181954

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{258743}}^1$

素因数の和:258761

約数の個数: 16

約数和(自身を含む): 43468992

約数和(自身を除く): 23287038

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 258743, 517486, 776229, 1552458, 3363659, 6727318, 10090977, 20181954]

約数ペア:

[(1, 20181954), (2, 10090977), (3, 6727318), (6, 3363659), (13, 1552458), (26, 776229), (39, 517486), (78, 258743)]