721848969

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{1407113}}^1$

素因数の和:1407141

約数の個数: 16

約数和(自身を含む): 1125691200

約数和(自身を除く): 403842231

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 1407113, 4221339, 12664017, 26735147, 37992051, 80205441, 240616323, 721848969]

約数ペア:

[(1, 721848969), (3, 240616323), (9, 80205441), (19, 37992051), (27, 26735147), (57, 12664017), (171, 4221339), (513, 1407113)]