18205838

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{68443}}^1$

素因数の和:68471

約数の個数: 16

約数和(自身を含む): 32853120

約数和(自身を除く): 14647282

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 68443, 136886, 479101, 958202, 1300417, 2600834, 9102919, 18205838]

約数ペア:

[(1, 18205838), (2, 9102919), (7, 2600834), (14, 1300417), (19, 958202), (38, 479101), (133, 136886), (266, 68443)]