208744809

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{4691}}^1$

素因数の和:4877

約数の個数: 32

約数和(自身を含む): 344730624

約数和(自身を除く): 135985815

約数列:

[1, 3, 7, 13, 21, 39, 91, 163, 273, 489, 1141, 2119, 3423, 4691, 6357, 14073, 14833, 32837, 44499, 60983, 98511, 182949, 426881, 764633, 1280643, 2293899, 5352431, 9940229, 16057293, 29820687, 69581603, 208744809]

約数ペア:

[(1, 208744809), (3, 69581603), (7, 29820687), (13, 16057293), (21, 9940229), (39, 5352431), (91, 2293899), (163, 1280643), (273, 764633), (489, 426881), (1141, 182949), (2119, 98511), (3423, 60983), (4691, 44499), (6357, 32837), (14073, 14833)]