16988727

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1877}}^1$

素因数の和:2318

約数の個数: 16

約数和(自身を含む): 25961472

約数和(自身を除く): 8972745

約数列:

[1, 3, 7, 21, 431, 1293, 1877, 3017, 5631, 9051, 13139, 39417, 808987, 2426961, 5662909, 16988727]

約数ペア:

[(1, 16988727), (3, 5662909), (7, 2426961), (21, 808987), (431, 39417), (1293, 13139), (1877, 9051), (3017, 5631)]