221437287

素因数分解:

$3^3\times {\mathrm{311}}^1\times {\mathrm{26371}}^1$

素因数の和:26691

約数の個数: 16

約数和(自身を含む): 329122560

約数和(自身を除く): 107685273

約数列:

[1, 3, 9, 27, 311, 933, 2799, 8397, 26371, 79113, 237339, 712017, 8201381, 24604143, 73812429, 221437287]

約数ペア:

[(1, 221437287), (3, 73812429), (9, 24604143), (27, 8201381), (311, 712017), (933, 237339), (2799, 79113), (8397, 26371)]