2157555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8461}}^1$

素因数の和:8486

約数の個数: 16

約数和(自身を含む): 3655584

約数和(自身を除く): 1498029

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 8461, 25383, 42305, 126915, 143837, 431511, 719185, 2157555]

約数ペア:

[(1, 2157555), (3, 719185), (5, 431511), (15, 143837), (17, 126915), (51, 42305), (85, 25383), (255, 8461)]