220996906

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{38461}}^1$

素因数の和:38506

約数の個数: 24

約数和(自身を含む): 380081484

約数和(自身を除く): 159084578

約数列:

[1, 2, 13, 17, 26, 34, 169, 221, 338, 442, 2873, 5746, 38461, 76922, 499993, 653837, 999986, 1307674, 6499909, 8499881, 12999818, 16999762, 110498453, 220996906]

約数ペア:

[(1, 220996906), (2, 110498453), (13, 16999762), (17, 12999818), (26, 8499881), (34, 6499909), (169, 1307674), (221, 999986), (338, 653837), (442, 499993), (2873, 76922), (5746, 38461)]