16980195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3917}}^1$

素因数の和:3959

約数の個数: 24

約数和(自身を含む): 28867824

約数和(自身を除く): 11887629

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 3917, 4335, 11751, 19585, 58755, 66589, 199767, 332945, 998835, 1132013, 3396039, 5660065, 16980195]

約数ペア:

[(1, 16980195), (3, 5660065), (5, 3396039), (15, 1132013), (17, 998835), (51, 332945), (85, 199767), (255, 66589), (289, 58755), (867, 19585), (1445, 11751), (3917, 4335)]