21409221

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{3371}}^1$

素因数の和:3476

約数の個数: 16

約数和(自身を含む): 29943360

約数和(自身を除く): 8534139

約数列:

[1, 3, 29, 73, 87, 219, 2117, 3371, 6351, 10113, 97759, 246083, 293277, 738249, 7136407, 21409221]

約数ペア:

[(1, 21409221), (3, 7136407), (29, 738249), (73, 293277), (87, 246083), (219, 97759), (2117, 10113), (3371, 6351)]