20929491

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19219}}^1$

素因数の和:19247

約数の個数: 18

約数和(自身を含む): 33231380

約数和(自身を除く): 12301889

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19219, 57657, 172971, 211409, 634227, 1902681, 2325499, 6976497, 20929491]

約数ペア:

[(1, 20929491), (3, 6976497), (9, 2325499), (11, 1902681), (33, 634227), (99, 211409), (121, 172971), (363, 57657), (1089, 19219)]