199887999

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{1049}}^1\times {\mathrm{3343}}^1$

素因数の和:4414

約数の個数: 16

約数和(自身を含む): 280896000

約数和(自身を除く): 81008001

約数列:

[1, 3, 19, 57, 1049, 3147, 3343, 10029, 19931, 59793, 63517, 190551, 3506807, 10520421, 66629333, 199887999]

約数ペア:

[(1, 199887999), (3, 66629333), (19, 10520421), (57, 3506807), (1049, 190551), (3147, 63517), (3343, 59793), (10029, 19931)]