18869431

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:522

約数の個数: 16

約数和(自身を含む): 22171968

約数和(自身を除く): 3302537

約数列:

[1, 7, 53, 181, 281, 371, 1267, 1967, 9593, 14893, 50861, 67151, 104251, 356027, 2695633, 18869431]

約数ペア:

[(1, 18869431), (7, 2695633), (53, 356027), (181, 104251), (281, 67151), (371, 50861), (1267, 14893), (1967, 9593)]