81706539

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 119439360

約数和(自身を除く): 37732821

約数列:

[1, 3, 17, 47, 51, 89, 141, 267, 383, 799, 1149, 1513, 2397, 4183, 4539, 6511, 12549, 18001, 19533, 34087, 54003, 71111, 102261, 213333, 306017, 579479, 918051, 1602089, 1738437, 4806267, 27235513, 81706539]

約数ペア:

[(1, 81706539), (3, 27235513), (17, 4806267), (47, 1738437), (51, 1602089), (89, 918051), (141, 579479), (267, 306017), (383, 213333), (799, 102261), (1149, 71111), (1513, 54003), (2397, 34087), (4183, 19533), (4539, 18001), (6511, 12549)]