20119619

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 23716800

約数和(自身を除く): 3597181

約数列:

[1, 13, 17, 47, 149, 169, 221, 611, 799, 1937, 2533, 2873, 7003, 7943, 10387, 25181, 32929, 91039, 119051, 135031, 428077, 1183507, 1547663, 20119619]

約数ペア:

[(1, 20119619), (13, 1547663), (17, 1183507), (47, 428077), (149, 135031), (169, 119051), (221, 91039), (611, 32929), (799, 25181), (1937, 10387), (2533, 7943), (2873, 7003)]