19784899

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:474

約数の個数: 16

約数和(自身を含む): 21581568

約数和(自身を除く): 1796669

約数列:

[1, 23, 37, 67, 347, 851, 1541, 2479, 7981, 12839, 23249, 57017, 295297, 534727, 860213, 19784899]

約数ペア:

[(1, 19784899), (23, 860213), (37, 534727), (67, 295297), (347, 57017), (851, 23249), (1541, 12839), (2479, 7981)]