19970748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 62782720

約数和(自身を除く): 42811972

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 43, 57, 63, 76, 84, 86, 97, 114, 126, 129, 133, 171, 172, 194, 228, 252, 258, 266, 291, 301, 342, 387, 388, 399, 516, 532, 582, 602, 679, 684, 774, 798, 817, 873, 903, 1164, 1197, 1204, 1358, 1548, 1596, 1634, 1746, 1806, 1843, 2037, 2394, 2451, 2709, 2716, 3268, 3492, 3612, 3686, 4074, 4171, 4788, 4902, 5418, 5529, 5719, 6111, 7353, 7372, 8148, 8342, 9804, 10836, 11058, 11438, 12222, 12513, 12901, 14706, 16587, 16684, 17157, 22116, 22876, 24444, 25026, 25802, 29197, 29412, 33174, 34314, 37539, 38703, 50052, 51471, 51604, 58394, 66348, 68628, 75078, 77406, 79249, 87591, 102942, 116109, 116788, 150156, 154812, 158498, 175182, 205884, 232218, 237747, 262773, 316996, 350364, 464436, 475494, 525546, 554743, 713241, 950988, 1051092, 1109486, 1426482, 1664229, 2218972, 2852964, 3328458, 4992687, 6656916, 9985374, 19970748]

約数ペア:

[(1, 19970748), (2, 9985374), (3, 6656916), (4, 4992687), (6, 3328458), (7, 2852964), (9, 2218972), (12, 1664229), (14, 1426482), (18, 1109486), (19, 1051092), (21, 950988), (28, 713241), (36, 554743), (38, 525546), (42, 475494), (43, 464436), (57, 350364), (63, 316996), (76, 262773), (84, 237747), (86, 232218), (97, 205884), (114, 175182), (126, 158498), (129, 154812), (133, 150156), (171, 116788), (172, 116109), (194, 102942), (228, 87591), (252, 79249), (258, 77406), (266, 75078), (291, 68628), (301, 66348), (342, 58394), (387, 51604), (388, 51471), (399, 50052), (516, 38703), (532, 37539), (582, 34314), (602, 33174), (679, 29412), (684, 29197), (774, 25802), (798, 25026), (817, 24444), (873, 22876), (903, 22116), (1164, 17157), (1197, 16684), (1204, 16587), (1358, 14706), (1548, 12901), (1596, 12513), (1634, 12222), (1746, 11438), (1806, 11058), (1843, 10836), (2037, 9804), (2394, 8342), (2451, 8148), (2709, 7372), (2716, 7353), (3268, 6111), (3492, 5719), (3612, 5529), (3686, 5418), (4074, 4902), (4171, 4788)]