213157215

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{205949}}^1$

素因数の和:205983

約数の個数: 24

約数和(自身を含む): 385538400

約数和(自身を除く): 172381185

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 205949, 617847, 1029745, 1853541, 3089235, 4736827, 9267705, 14210481, 23684135, 42631443, 71052405, 213157215]

約数ペア:

[(1, 213157215), (3, 71052405), (5, 42631443), (9, 23684135), (15, 14210481), (23, 9267705), (45, 4736827), (69, 3089235), (115, 1853541), (207, 1029745), (345, 617847), (1035, 205949)]