51781863

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{40423}}^1$

素因数の和:40494

約数の個数: 16

約数和(自身を含む): 80201216

約数和(自身を除く): 28419353

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 40423, 121269, 282961, 848883, 2465803, 7397409, 17260621, 51781863]

約数ペア:

[(1, 51781863), (3, 17260621), (7, 7397409), (21, 2465803), (61, 848883), (183, 282961), (427, 121269), (1281, 40423)]