2218517

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:308

約数の個数: 16

約数和(自身を含む): 2725632

約数和(自身を除く): 507115

約数列:

[1, 7, 17, 103, 119, 181, 721, 1267, 1751, 3077, 12257, 18643, 21539, 130501, 316931, 2218517]

約数ペア:

[(1, 2218517), (7, 316931), (17, 130501), (103, 21539), (119, 18643), (181, 12257), (721, 3077), (1267, 1751)]