21346929

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 33120000

約数和(自身を除く): 11773071

約数列:

[1, 3, 9, 27, 29, 87, 137, 199, 261, 411, 597, 783, 1233, 1791, 3699, 3973, 5373, 5771, 11919, 17313, 27263, 35757, 51939, 81789, 107271, 155817, 245367, 736101, 790627, 2371881, 7115643, 21346929]

約数ペア:

[(1, 21346929), (3, 7115643), (9, 2371881), (27, 790627), (29, 736101), (87, 245367), (137, 155817), (199, 107271), (261, 81789), (411, 51939), (597, 35757), (783, 27263), (1233, 17313), (1791, 11919), (3699, 5771), (3973, 5373)]