18804519981

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4121087}}^1$

素因数の和:4121122

約数の個数: 24

約数和(自身を含む): 30166364160

約数和(自身を除く): 11361844179

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 4121087, 12363261, 37089783, 53574131, 111269349, 160722393, 482167179, 696463703, 1446501537, 2089391109, 6268173327, 18804519981]

約数ペア:

[(1, 18804519981), (3, 6268173327), (9, 2089391109), (13, 1446501537), (27, 696463703), (39, 482167179), (117, 160722393), (169, 111269349), (351, 53574131), (507, 37089783), (1521, 12363261), (4563, 4121087)]