18459707

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{271}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 21829632

約数和(自身を除く): 3369925

約数列:

[1, 7, 37, 259, 263, 271, 1841, 1897, 9731, 10027, 68117, 70189, 71273, 498911, 2637101, 18459707]

約数ペア:

[(1, 18459707), (7, 2637101), (37, 498911), (259, 71273), (263, 70189), (271, 68117), (1841, 10027), (1897, 9731)]