128905257

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{3581}}^1$

素因数の和:3681

約数の個数: 24

約数和(自身を含む): 188785728

約数和(自身を除く): 59880471

約数列:

[1, 3, 13, 39, 71, 169, 213, 507, 923, 2769, 3581, 10743, 11999, 35997, 46553, 139659, 254251, 605189, 762753, 1815567, 3305263, 9915789, 42968419, 128905257]

約数ペア:

[(1, 128905257), (3, 42968419), (13, 9915789), (39, 3305263), (71, 1815567), (169, 762753), (213, 605189), (507, 254251), (923, 139659), (2769, 46553), (3581, 35997), (10743, 11999)]