81114915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20879}}^1$

素因数の和:20931

約数の個数: 32

約数和(自身を含む): 152340480

約数和(自身を除く): 71225565

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 20879, 62637, 104395, 146153, 313185, 438459, 730765, 772523, 2192295, 2317569, 3862615, 5407661, 11587845, 16222983, 27038305, 81114915]

約数ペア:

[(1, 81114915), (3, 27038305), (5, 16222983), (7, 11587845), (15, 5407661), (21, 3862615), (35, 2317569), (37, 2192295), (105, 772523), (111, 730765), (185, 438459), (259, 313185), (555, 146153), (777, 104395), (1295, 62637), (3885, 20879)]