42978627

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:648

約数の個数: 32

約数和(自身を含む): 67520000

約数和(自身を除く): 24541373

約数列:

[1, 3, 9, 19, 27, 57, 171, 199, 421, 513, 597, 1263, 1791, 3781, 3789, 5373, 7999, 11343, 11367, 23997, 34029, 71991, 83779, 102087, 215973, 251337, 754011, 1591801, 2262033, 4775403, 14326209, 42978627]

約数ペア:

[(1, 42978627), (3, 14326209), (9, 4775403), (19, 2262033), (27, 1591801), (57, 754011), (171, 251337), (199, 215973), (421, 102087), (513, 83779), (597, 71991), (1263, 34029), (1791, 23997), (3781, 11367), (3789, 11343), (5373, 7999)]