1243845

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 2182752

約数和(自身を除く): 938907

約数列:

[1, 3, 5, 9, 15, 45, 131, 211, 393, 633, 655, 1055, 1179, 1899, 1965, 3165, 5895, 9495, 27641, 82923, 138205, 248769, 414615, 1243845]

約数ペア:

[(1, 1243845), (3, 414615), (5, 248769), (9, 138205), (15, 82923), (45, 27641), (131, 9495), (211, 5895), (393, 3165), (633, 1965), (655, 1899), (1055, 1179)]