21929211

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{14249}}^1$

素因数の和:14280

約数の個数: 20

約数和(自身を含む): 34485000

約数和(自身を除く): 12555789

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 14249, 42747, 128241, 270731, 384723, 812193, 1154169, 2436579, 7309737, 21929211]

約数ペア:

[(1, 21929211), (3, 7309737), (9, 2436579), (19, 1154169), (27, 812193), (57, 384723), (81, 270731), (171, 128241), (513, 42747), (1539, 14249)]