78237009

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:201

約数の個数: 56

約数和(自身を含む): 127487520

約数和(自身を除く): 49250511

約数列:

[1, 3, 9, 17, 27, 51, 59, 81, 107, 153, 177, 243, 321, 459, 531, 729, 963, 1003, 1377, 1593, 1819, 2889, 3009, 4131, 4779, 5457, 6313, 8667, 9027, 12393, 14337, 16371, 18939, 26001, 27081, 43011, 49113, 56817, 78003, 81243, 107321, 147339, 170451, 243729, 321963, 442017, 511353, 731187, 965889, 1326051, 1534059, 2897667, 4602177, 8693001, 26079003, 78237009]

約数ペア:

[(1, 78237009), (3, 26079003), (9, 8693001), (17, 4602177), (27, 2897667), (51, 1534059), (59, 1326051), (81, 965889), (107, 731187), (153, 511353), (177, 442017), (243, 321963), (321, 243729), (459, 170451), (531, 147339), (729, 107321), (963, 81243), (1003, 78003), (1377, 56817), (1593, 49113), (1819, 43011), (2889, 27081), (3009, 26001), (4131, 18939), (4779, 16371), (5457, 14337), (6313, 12393), (8667, 9027)]