20326059

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:321

約数の個数: 40

約数和(自身を含む): 33202400

約数和(自身を除く): 12876341

約数列:

[1, 3, 9, 13, 27, 39, 81, 97, 117, 199, 291, 351, 597, 873, 1053, 1261, 1791, 2587, 2619, 3783, 5373, 7761, 7857, 11349, 16119, 19303, 23283, 34047, 57909, 69849, 102141, 173727, 209547, 250939, 521181, 752817, 1563543, 2258451, 6775353, 20326059]

約数ペア:

[(1, 20326059), (3, 6775353), (9, 2258451), (13, 1563543), (27, 752817), (39, 521181), (81, 250939), (97, 209547), (117, 173727), (199, 102141), (291, 69849), (351, 57909), (597, 34047), (873, 23283), (1053, 19303), (1261, 16119), (1791, 11349), (2587, 7857), (2619, 7761), (3783, 5373)]