18063213

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1193}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 28312128

約数和(自身を除く): 10248915

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 1193, 2163, 3579, 5047, 8351, 15141, 25053, 58457, 122879, 175371, 368637, 860153, 2580459, 6021071, 18063213]

約数ペア:

[(1, 18063213), (3, 6021071), (7, 2580459), (21, 860153), (49, 368637), (103, 175371), (147, 122879), (309, 58457), (721, 25053), (1193, 15141), (2163, 8351), (3579, 5047)]