1221000561

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{19301}}^1$

素因数の和:19395

約数の個数: 40

約数和(自身を含む): 2017908288

約数和(自身を除く): 796907727

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 213, 297, 639, 781, 891, 1917, 2343, 5751, 7029, 19301, 21087, 57903, 63261, 173709, 212311, 521127, 636933, 1370371, 1563381, 1910799, 4111113, 5732397, 12333339, 15074081, 17197191, 37000017, 45222243, 111000051, 135666729, 407000187, 1221000561]

約数ペア:

[(1, 1221000561), (3, 407000187), (9, 135666729), (11, 111000051), (27, 45222243), (33, 37000017), (71, 17197191), (81, 15074081), (99, 12333339), (213, 5732397), (297, 4111113), (639, 1910799), (781, 1563381), (891, 1370371), (1917, 636933), (2343, 521127), (5751, 212311), (7029, 173709), (19301, 63261), (21087, 57903)]