19943859

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:451

約数の個数: 24

約数和(自身を含む): 29104320

約数和(自身を除く): 9160461

約数列:

[1, 3, 13, 39, 139, 169, 283, 417, 507, 849, 1807, 3679, 5421, 11037, 23491, 39337, 47827, 70473, 118011, 143481, 511381, 1534143, 6647953, 19943859]

約数ペア:

[(1, 19943859), (3, 6647953), (13, 1534143), (39, 511381), (139, 143481), (169, 118011), (283, 70473), (417, 47827), (507, 39337), (849, 23491), (1807, 11037), (3679, 5421)]