19701513

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12953}}^1$

素因数の和:12985

約数の個数: 18

約数和(自身を含む): 30817566

約数和(自身を除く): 11116053

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12953, 38859, 116577, 168389, 505167, 1515501, 2189057, 6567171, 19701513]

約数ペア:

[(1, 19701513), (3, 6567171), (9, 2189057), (13, 1515501), (39, 505167), (117, 168389), (169, 116577), (507, 38859), (1521, 12953)]