21115017

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30469}}^1$

素因数の和:30493

約数の個数: 24

約数和(自身を含む): 38026560

約数和(自身を除く): 16911543

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30469, 91407, 213283, 274221, 335159, 639849, 1005477, 1919547, 2346113, 3016431, 7038339, 21115017]

約数ペア:

[(1, 21115017), (3, 7038339), (7, 3016431), (9, 2346113), (11, 1919547), (21, 1005477), (33, 639849), (63, 335159), (77, 274221), (99, 213283), (231, 91407), (693, 30469)]