19590021

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17989}}^1$

素因数の和:18017

約数の個数: 18

約数和(自身を含む): 31104710

約数和(自身を除く): 11514689

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 17989, 53967, 161901, 197879, 593637, 1780911, 2176669, 6530007, 19590021]

約数ペア:

[(1, 19590021), (3, 6530007), (9, 2176669), (11, 1780911), (33, 593637), (99, 197879), (121, 161901), (363, 53967), (1089, 17989)]