31319217

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:307

約数の個数: 40

約数和(自身を含む): 49368000

約数和(自身を除く): 18048783

約数列:

[1, 3, 9, 27, 29, 67, 81, 87, 199, 201, 261, 597, 603, 783, 1791, 1809, 1943, 2349, 5373, 5427, 5771, 5829, 13333, 16119, 17313, 17487, 39999, 51939, 52461, 119997, 155817, 157383, 359991, 386657, 467451, 1079973, 1159971, 3479913, 10439739, 31319217]

約数ペア:

[(1, 31319217), (3, 10439739), (9, 3479913), (27, 1159971), (29, 1079973), (67, 467451), (81, 386657), (87, 359991), (199, 157383), (201, 155817), (261, 119997), (597, 52461), (603, 51939), (783, 39999), (1791, 17487), (1809, 17313), (1943, 16119), (2349, 13333), (5373, 5829), (5427, 5771)]