855945

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{827}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 1550016

約数和(自身を除く): 694071

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 827, 1035, 2481, 4135, 7443, 12405, 19021, 37215, 57063, 95105, 171189, 285315, 855945]

約数ペア:

[(1, 855945), (3, 285315), (5, 171189), (9, 95105), (15, 57063), (23, 37215), (45, 19021), (69, 12405), (115, 7443), (207, 4135), (345, 2481), (827, 1035)]