19799505

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 39168000

約数和(自身を除く): 19368495

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 67, 99, 135, 165, 199, 201, 297, 335, 495, 597, 603, 737, 995, 1005, 1485, 1791, 1809, 2189, 2211, 2985, 3015, 3685, 5373, 6567, 6633, 8955, 9045, 10945, 11055, 13333, 19701, 19899, 26865, 32835, 33165, 39999, 59103, 66665, 98505, 99495, 119997, 146663, 199995, 295515, 359991, 439989, 599985, 733315, 1319967, 1799955, 2199945, 3959901, 6599835, 19799505]

約数ペア:

[(1, 19799505), (3, 6599835), (5, 3959901), (9, 2199945), (11, 1799955), (15, 1319967), (27, 733315), (33, 599985), (45, 439989), (55, 359991), (67, 295515), (99, 199995), (135, 146663), (165, 119997), (199, 99495), (201, 98505), (297, 66665), (335, 59103), (495, 39999), (597, 33165), (603, 32835), (737, 26865), (995, 19899), (1005, 19701), (1485, 13333), (1791, 11055), (1809, 10945), (2189, 9045), (2211, 8955), (2985, 6633), (3015, 6567), (3685, 5373)]