19260085

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 26141184

約数和(自身を除く): 6881099

約数列:

[1, 5, 13, 23, 65, 115, 169, 299, 845, 991, 1495, 3887, 4955, 12883, 19435, 22793, 64415, 113965, 167479, 296309, 837395, 1481545, 3852017, 19260085]

約数ペア:

[(1, 19260085), (5, 3852017), (13, 1481545), (23, 837395), (65, 296309), (115, 167479), (169, 113965), (299, 64415), (845, 22793), (991, 19435), (1495, 12883), (3887, 4955)]