20178544581

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{257797}}^1$

素因数の和:258042

約数の個数: 32

約数和(自身を含む): 32338181120

約数和(自身を除く): 12159636539

約数列:

[1, 3, 9, 13, 27, 39, 117, 223, 351, 669, 2007, 2899, 6021, 8697, 26091, 78273, 257797, 773391, 2320173, 3351361, 6960519, 10054083, 30162249, 57488731, 90486747, 172466193, 517398579, 747353503, 1552195737, 2242060509, 6726181527, 20178544581]

約数ペア:

[(1, 20178544581), (3, 6726181527), (9, 2242060509), (13, 1552195737), (27, 747353503), (39, 517398579), (117, 172466193), (223, 90486747), (351, 57488731), (669, 30162249), (2007, 10054083), (2899, 6960519), (6021, 3351361), (8697, 2320173), (26091, 773391), (78273, 257797)]