16663281

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{823}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 23612544

約数和(自身を除く): 6949263

約数列:

[1, 3, 17, 51, 397, 823, 1191, 2469, 6749, 13991, 20247, 41973, 326731, 980193, 5554427, 16663281]

約数ペア:

[(1, 16663281), (3, 5554427), (17, 980193), (51, 326731), (397, 41973), (823, 20247), (1191, 13991), (2469, 6749)]