13881231

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 26155584

約数和(自身を除く): 12274353

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 997, 1071, 1547, 1989, 2991, 4641, 6979, 8973, 12961, 13923, 16949, 20937, 38883, 50847, 62811, 90727, 116649, 118643, 152541, 220337, 272181, 355929, 661011, 816543, 1067787, 1542359, 1983033, 4627077, 13881231]

約数ペア:

[(1, 13881231), (3, 4627077), (7, 1983033), (9, 1542359), (13, 1067787), (17, 816543), (21, 661011), (39, 355929), (51, 272181), (63, 220337), (91, 152541), (117, 118643), (119, 116649), (153, 90727), (221, 62811), (273, 50847), (357, 38883), (663, 20937), (819, 16949), (997, 13923), (1071, 12961), (1547, 8973), (1989, 6979), (2991, 4641)]