281680497

素因数分解:

$3^6\times 7^1\times {\mathrm{17}}^2\times {\mathrm{191}}^1$

素因数の和:250

約数の個数: 84

約数和(自身を含む): 515406336

約数和(自身を除く): 233725839

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 191, 243, 289, 357, 459, 567, 573, 729, 867, 1071, 1337, 1377, 1701, 1719, 2023, 2601, 3213, 3247, 4011, 4131, 5103, 5157, 6069, 7803, 9639, 9741, 12033, 12393, 15471, 18207, 22729, 23409, 28917, 29223, 36099, 46413, 54621, 55199, 68187, 70227, 86751, 87669, 108297, 139239, 163863, 165597, 204561, 210681, 263007, 324891, 386393, 491589, 496791, 613683, 789021, 974673, 1159179, 1474767, 1490373, 1841049, 2367063, 3477537, 4471119, 5523147, 10432611, 13413357, 16569441, 31297833, 40240071, 93893499, 281680497]

約数ペア:

[(1, 281680497), (3, 93893499), (7, 40240071), (9, 31297833), (17, 16569441), (21, 13413357), (27, 10432611), (51, 5523147), (63, 4471119), (81, 3477537), (119, 2367063), (153, 1841049), (189, 1490373), (191, 1474767), (243, 1159179), (289, 974673), (357, 789021), (459, 613683), (567, 496791), (573, 491589), (729, 386393), (867, 324891), (1071, 263007), (1337, 210681), (1377, 204561), (1701, 165597), (1719, 163863), (2023, 139239), (2601, 108297), (3213, 87669), (3247, 86751), (4011, 70227), (4131, 68187), (5103, 55199), (5157, 54621), (6069, 46413), (7803, 36099), (9639, 29223), (9741, 28917), (12033, 23409), (12393, 22729), (15471, 18207)]