208247949

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:807

約数の個数: 64

約数和(自身を含む): 383201280

約数和(自身を除く): 174953331

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 131, 189, 273, 351, 393, 647, 819, 917, 1179, 1703, 1941, 2457, 2751, 3537, 4529, 5109, 5823, 8253, 8411, 11921, 13587, 15327, 17469, 24759, 25233, 35763, 40761, 45981, 58877, 75699, 84757, 107289, 122283, 176631, 227097, 254271, 321867, 529893, 593299, 762813, 1101841, 1589679, 1779897, 2288439, 3305523, 5339691, 7712887, 9916569, 16019073, 23138661, 29749707, 69415983, 208247949]

約数ペア:

[(1, 208247949), (3, 69415983), (7, 29749707), (9, 23138661), (13, 16019073), (21, 9916569), (27, 7712887), (39, 5339691), (63, 3305523), (91, 2288439), (117, 1779897), (131, 1589679), (189, 1101841), (273, 762813), (351, 593299), (393, 529893), (647, 321867), (819, 254271), (917, 227097), (1179, 176631), (1703, 122283), (1941, 107289), (2457, 84757), (2751, 75699), (3537, 58877), (4529, 45981), (5109, 40761), (5823, 35763), (8253, 25233), (8411, 24759), (11921, 17469), (13587, 15327)]