663667587

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 1149984000

約数和(自身を除く): 486316413

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 171, 197, 199, 209, 297, 513, 591, 597, 627, 891, 1539, 1773, 1791, 1881, 2167, 2189, 3743, 3781, 5319, 5373, 5643, 6501, 6567, 11229, 11343, 15957, 16119, 16929, 19503, 19701, 33687, 34029, 39203, 41173, 41591, 58509, 59103, 101061, 102087, 117609, 123519, 124773, 175527, 177309, 303183, 306261, 352827, 370557, 374319, 431233, 744857, 1058481, 1111671, 1122957, 1293699, 2234571, 3175443, 3335013, 3368871, 3881097, 6703713, 8193427, 11643291, 20111139, 24580281, 34929873, 60333417, 73740843, 221222529, 663667587]

約数ペア:

[(1, 663667587), (3, 221222529), (9, 73740843), (11, 60333417), (19, 34929873), (27, 24580281), (33, 20111139), (57, 11643291), (81, 8193427), (99, 6703713), (171, 3881097), (197, 3368871), (199, 3335013), (209, 3175443), (297, 2234571), (513, 1293699), (591, 1122957), (597, 1111671), (627, 1058481), (891, 744857), (1539, 431233), (1773, 374319), (1791, 370557), (1881, 352827), (2167, 306261), (2189, 303183), (3743, 177309), (3781, 175527), (5319, 124773), (5373, 123519), (5643, 117609), (6501, 102087), (6567, 101061), (11229, 59103), (11343, 58509), (15957, 41591), (16119, 41173), (16929, 39203), (19503, 34029), (19701, 33687)]