678439293

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{1987}}^1$

素因数の和:2297

約数の個数: 32

約数和(自身を含む): 1053480960

約数和(自身を除く): 375041667

約数列:

[1, 3, 7, 21, 71, 213, 229, 497, 687, 1491, 1603, 1987, 4809, 5961, 13909, 16259, 41727, 48777, 113813, 141077, 341439, 423231, 455023, 987539, 1365069, 2962617, 3185161, 9555483, 32306633, 96919899, 226146431, 678439293]

約数ペア:

[(1, 678439293), (3, 226146431), (7, 96919899), (21, 32306633), (71, 9555483), (213, 3185161), (229, 2962617), (497, 1365069), (687, 987539), (1491, 455023), (1603, 423231), (1987, 341439), (4809, 141077), (5961, 113813), (13909, 48777), (16259, 41727)]