13478391

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 36

約数和(自身を含む): 21567000

約数和(自身を除く): 8088609

約数列:

[1, 3, 9, 19, 23, 57, 69, 149, 171, 207, 437, 447, 529, 1311, 1341, 1587, 2831, 3427, 3933, 4761, 8493, 10051, 10281, 25479, 30153, 30843, 65113, 78821, 90459, 195339, 236463, 586017, 709389, 1497599, 4492797, 13478391]

約数ペア:

[(1, 13478391), (3, 4492797), (9, 1497599), (19, 709389), (23, 586017), (57, 236463), (69, 195339), (149, 90459), (171, 78821), (207, 65113), (437, 30843), (447, 30153), (529, 25479), (1311, 10281), (1341, 10051), (1587, 8493), (2831, 4761), (3427, 3933)]