209723913

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{144737}}^1$

素因数の和:144773

約数の個数: 24

約数和(自身を含む): 361266048

約数和(自身を除く): 151542135

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 144737, 434211, 1013159, 1302633, 3039477, 3328951, 9118431, 9986853, 23302657, 29960559, 69907971, 209723913]

約数ペア:

[(1, 209723913), (3, 69907971), (7, 29960559), (9, 23302657), (21, 9986853), (23, 9118431), (63, 3328951), (69, 3039477), (161, 1302633), (207, 1013159), (483, 434211), (1449, 144737)]