211419

素因数分解:

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

素因数の和:171

約数の個数: 18

約数和(自身を含む): 333060

約数和(自身を除く): 121641

約数列:

[1, 3, 9, 13, 39, 117, 139, 169, 417, 507, 1251, 1521, 1807, 5421, 16263, 23491, 70473, 211419]

約数ペア:

[(1, 211419), (3, 70473), (9, 23491), (13, 16263), (39, 5421), (117, 1807), (139, 1521), (169, 1251), (417, 507)]