220171791

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{551809}}^1$

素因数の和:551838

約数の個数: 16

約数和(自身を含む): 353158400

約数和(自身を除く): 132986609

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 551809, 1655427, 3862663, 10484371, 11587989, 31453113, 73390597, 220171791]

約数ペア:

[(1, 220171791), (3, 73390597), (7, 31453113), (19, 11587989), (21, 10484371), (57, 3862663), (133, 1655427), (399, 551809)]