21425217

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{34171}}^1$

素因数の和:34204

約数の個数: 16

約数和(自身を含む): 32805120

約数和(自身を除く): 11379903

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 34171, 102513, 375881, 649249, 1127643, 1947747, 7141739, 21425217]

約数ペア:

[(1, 21425217), (3, 7141739), (11, 1947747), (19, 1127643), (33, 649249), (57, 375881), (209, 102513), (627, 34171)]