72972009

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{81899}}^1$

素因数の和:81922

約数の個数: 20

約数和(自身を含む): 118918800

約数和(自身を除く): 45946791

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 81899, 245697, 737091, 900889, 2211273, 2702667, 6633819, 8108001, 24324003, 72972009]

約数ペア:

[(1, 72972009), (3, 24324003), (9, 8108001), (11, 6633819), (27, 2702667), (33, 2211273), (81, 900889), (99, 737091), (297, 245697), (891, 81899)]