397834983

素因数分解:

$3^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2040

約数の個数: 64

約数和(自身を含む): 734720000

約数和(自身を除く): 336885017

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 243, 273, 351, 567, 729, 819, 1053, 1701, 1999, 2187, 2457, 3159, 5103, 5997, 7371, 9477, 13993, 15309, 17991, 22113, 25987, 28431, 41979, 53973, 66339, 77961, 125937, 161919, 181909, 199017, 233883, 377811, 485757, 545727, 701649, 1133433, 1457271, 1637181, 2104947, 3400299, 4371813, 4911543, 6314841, 10200897, 14734629, 18944523, 30602691, 44203887, 56833569, 132611661, 397834983]

約数ペア:

[(1, 397834983), (3, 132611661), (7, 56833569), (9, 44203887), (13, 30602691), (21, 18944523), (27, 14734629), (39, 10200897), (63, 6314841), (81, 4911543), (91, 4371813), (117, 3400299), (189, 2104947), (243, 1637181), (273, 1457271), (351, 1133433), (567, 701649), (729, 545727), (819, 485757), (1053, 377811), (1701, 233883), (1999, 199017), (2187, 181909), (2457, 161919), (3159, 125937), (5103, 77961), (5997, 66339), (7371, 53973), (9477, 41979), (13993, 28431), (15309, 25987), (17991, 22113)]