2153408085

素因数分解:

$3^4\times 5^1\times {\mathrm{5317057}}^1$

素因数の和:5317074

約数の個数: 20

約数和(自身を含む): 3860184108

約数和(自身を除く): 1706776023

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5317057, 15951171, 26585285, 47853513, 79755855, 143560539, 239267565, 430681617, 717802695, 2153408085]

約数ペア:

[(1, 2153408085), (3, 717802695), (5, 430681617), (9, 239267565), (15, 143560539), (27, 79755855), (45, 47853513), (81, 26585285), (135, 15951171), (405, 5317057)]