7218965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 10160640

約数和(自身を除く): 2941675

約数列:

[1, 5, 13, 17, 47, 65, 85, 139, 221, 235, 611, 695, 799, 1105, 1807, 2363, 3055, 3995, 6533, 9035, 10387, 11815, 30719, 32665, 51935, 84929, 111061, 153595, 424645, 555305, 1443793, 7218965]

約数ペア:

[(1, 7218965), (5, 1443793), (13, 555305), (17, 424645), (47, 153595), (65, 111061), (85, 84929), (139, 51935), (221, 32665), (235, 30719), (611, 11815), (695, 10387), (799, 9035), (1105, 6533), (1807, 3995), (2363, 3055)]