18669261

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1601}}^1$

素因数の和:1653

約数の個数: 24

約数和(自身を含む): 28143936

約数和(自身を除く): 9474675

約数列:

[1, 3, 13, 23, 39, 69, 169, 299, 507, 897, 1601, 3887, 4803, 11661, 20813, 36823, 62439, 110469, 270569, 478699, 811707, 1436097, 6223087, 18669261]

約数ペア:

[(1, 18669261), (3, 6223087), (13, 1436097), (23, 811707), (39, 478699), (69, 270569), (169, 110469), (299, 62439), (507, 36823), (897, 20813), (1601, 11661), (3887, 4803)]