72981369

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{15329}}^1$

素因数の和:15381

約数の個数: 18

約数和(自身を含む): 110207370

約数和(自身を除く): 37226001

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4761, 15329, 45987, 137961, 352567, 1057701, 3173103, 8109041, 24327123, 72981369]

約数ペア:

[(1, 72981369), (3, 24327123), (9, 8109041), (23, 3173103), (69, 1057701), (207, 352567), (529, 137961), (1587, 45987), (4761, 15329)]