20865768

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1613}}^1$

素因数の和:1647

約数の個数: 96

約数和(自身を含む): 66238560

約数和(自身を除く): 45372792

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 49, 56, 66, 77, 84, 88, 98, 132, 147, 154, 168, 196, 231, 264, 294, 308, 392, 462, 539, 588, 616, 924, 1078, 1176, 1613, 1617, 1848, 2156, 3226, 3234, 4312, 4839, 6452, 6468, 9678, 11291, 12904, 12936, 17743, 19356, 22582, 33873, 35486, 38712, 45164, 53229, 67746, 70972, 79037, 90328, 106458, 124201, 135492, 141944, 158074, 212916, 237111, 248402, 270984, 316148, 372603, 425832, 474222, 496804, 632296, 745206, 869407, 948444, 993608, 1490412, 1738814, 1896888, 2608221, 2980824, 3477628, 5216442, 6955256, 10432884, 20865768]

約数ペア:

[(1, 20865768), (2, 10432884), (3, 6955256), (4, 5216442), (6, 3477628), (7, 2980824), (8, 2608221), (11, 1896888), (12, 1738814), (14, 1490412), (21, 993608), (22, 948444), (24, 869407), (28, 745206), (33, 632296), (42, 496804), (44, 474222), (49, 425832), (56, 372603), (66, 316148), (77, 270984), (84, 248402), (88, 237111), (98, 212916), (132, 158074), (147, 141944), (154, 135492), (168, 124201), (196, 106458), (231, 90328), (264, 79037), (294, 70972), (308, 67746), (392, 53229), (462, 45164), (539, 38712), (588, 35486), (616, 33873), (924, 22582), (1078, 19356), (1176, 17743), (1613, 12936), (1617, 12904), (1848, 11291), (2156, 9678), (3226, 6468), (3234, 6452), (4312, 4839)]