248857917

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{823}}^1$

素因数の和:879

約数の個数: 72

約数和(自身を含む): 449765568

約数和(自身を除く): 200907651

約数列:

[1, 3, 7, 11, 17, 21, 33, 49, 51, 77, 119, 121, 147, 187, 231, 357, 363, 539, 561, 823, 833, 847, 1309, 1617, 2057, 2469, 2499, 2541, 3927, 5761, 5929, 6171, 9053, 9163, 13991, 14399, 17283, 17787, 27159, 27489, 40327, 41973, 43197, 63371, 97937, 99583, 100793, 120981, 153901, 190113, 293811, 298749, 302379, 443597, 461703, 685559, 697081, 1077307, 1330791, 1692911, 2056677, 2091243, 3231921, 4879567, 5078733, 7541149, 11850377, 14638701, 22623447, 35551131, 82952639, 248857917]

約数ペア:

[(1, 248857917), (3, 82952639), (7, 35551131), (11, 22623447), (17, 14638701), (21, 11850377), (33, 7541149), (49, 5078733), (51, 4879567), (77, 3231921), (119, 2091243), (121, 2056677), (147, 1692911), (187, 1330791), (231, 1077307), (357, 697081), (363, 685559), (539, 461703), (561, 443597), (823, 302379), (833, 298749), (847, 293811), (1309, 190113), (1617, 153901), (2057, 120981), (2469, 100793), (2499, 99583), (2541, 97937), (3927, 63371), (5761, 43197), (5929, 41973), (6171, 40327), (9053, 27489), (9163, 27159), (13991, 17787), (14399, 17283)]