21141219

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{6343}}^1$

素因数の和:6458

約数の個数: 16

約数和(自身を含む): 31060224

約数和(自身を除く): 9919005

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 6343, 19029, 69773, 209319, 640643, 1921929, 7047073, 21141219]

約数ペア:

[(1, 21141219), (3, 7047073), (11, 1921929), (33, 640643), (101, 209319), (303, 69773), (1111, 19029), (3333, 6343)]