216913943

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{83}}^2$

素因数の和:263

約数の個数: 18

約数和(自身を含む): 235464264

約数和(自身を除く): 18550321

約数列:

[1, 23, 37, 83, 851, 1369, 1909, 3071, 6889, 31487, 70633, 113627, 158447, 254893, 2613421, 5862539, 9431041, 216913943]

約数ペア:

[(1, 216913943), (23, 9431041), (37, 5862539), (83, 2613421), (851, 254893), (1369, 158447), (1909, 113627), (3071, 70633), (6889, 31487)]