208766331

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 330220800

約数和(自身を除く): 121454469

約数列:

[1, 3, 9, 23, 29, 69, 83, 87, 207, 249, 261, 419, 667, 747, 1257, 1909, 2001, 2407, 3771, 5727, 6003, 7221, 9637, 12151, 17181, 21663, 28911, 34777, 36453, 55361, 86733, 104331, 109359, 166083, 279473, 312993, 498249, 799871, 838419, 1008533, 2399613, 2515257, 3025599, 7198839, 9076797, 23196259, 69588777, 208766331]

約数ペア:

[(1, 208766331), (3, 69588777), (9, 23196259), (23, 9076797), (29, 7198839), (69, 3025599), (83, 2515257), (87, 2399613), (207, 1008533), (249, 838419), (261, 799871), (419, 498249), (667, 312993), (747, 279473), (1257, 166083), (1909, 109359), (2001, 104331), (2407, 86733), (3771, 55361), (5727, 36453), (6003, 34777), (7221, 28911), (9637, 21663), (12151, 17181)]