16820705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{13297}}^1$

素因数の和:13336

約数の個数: 16

約数和(自身を含む): 22978944

約数和(自身を除く): 6158239

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 13297, 66485, 146267, 305831, 731335, 1529155, 3364141, 16820705]

約数ペア:

[(1, 16820705), (5, 3364141), (11, 1529155), (23, 731335), (55, 305831), (115, 146267), (253, 66485), (1265, 13297)]