18103589

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 22621248

約数和(自身を除く): 4517659

約数列:

[1, 7, 17, 49, 103, 119, 211, 721, 833, 1477, 1751, 3587, 5047, 10339, 12257, 21733, 25109, 85799, 152131, 175763, 369461, 1064917, 2586227, 18103589]

約数ペア:

[(1, 18103589), (7, 2586227), (17, 1064917), (49, 369461), (103, 175763), (119, 152131), (211, 85799), (721, 25109), (833, 21733), (1477, 12257), (1751, 10339), (3587, 5047)]