16664121

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:290

約数の個数: 36

約数和(自身を含む): 26627328

約数和(自身を除く): 9963207

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 223, 361, 437, 669, 1083, 1311, 2007, 3249, 3933, 4237, 5129, 8303, 12711, 15387, 24909, 38133, 46161, 74727, 80503, 97451, 241509, 292353, 724527, 877059, 1851569, 5554707, 16664121]

約数ペア:

[(1, 16664121), (3, 5554707), (9, 1851569), (19, 877059), (23, 724527), (57, 292353), (69, 241509), (171, 97451), (207, 80503), (223, 74727), (361, 46161), (437, 38133), (669, 24909), (1083, 15387), (1311, 12711), (2007, 8303), (3249, 5129), (3933, 4237)]