21127176

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 128

約数和(自身を含む): 68256000

約数和(自身を除く): 47128824

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 89, 108, 126, 157, 168, 178, 189, 216, 252, 267, 314, 356, 378, 471, 504, 534, 623, 628, 712, 756, 801, 942, 1068, 1099, 1246, 1256, 1413, 1512, 1602, 1869, 1884, 2136, 2198, 2403, 2492, 2826, 3204, 3297, 3738, 3768, 4239, 4396, 4806, 4984, 5607, 5652, 6408, 6594, 7476, 8478, 8792, 9612, 9891, 11214, 11304, 13188, 13973, 14952, 16821, 16956, 19224, 19782, 22428, 26376, 27946, 29673, 33642, 33912, 39564, 41919, 44856, 55892, 59346, 67284, 79128, 83838, 97811, 111784, 118692, 125757, 134568, 167676, 195622, 237384, 251514, 293433, 335352, 377271, 391244, 503028, 586866, 754542, 782488, 880299, 1006056, 1173732, 1509084, 1760598, 2347464, 2640897, 3018168, 3521196, 5281794, 7042392, 10563588, 21127176]

約数ペア:

[(1, 21127176), (2, 10563588), (3, 7042392), (4, 5281794), (6, 3521196), (7, 3018168), (8, 2640897), (9, 2347464), (12, 1760598), (14, 1509084), (18, 1173732), (21, 1006056), (24, 880299), (27, 782488), (28, 754542), (36, 586866), (42, 503028), (54, 391244), (56, 377271), (63, 335352), (72, 293433), (84, 251514), (89, 237384), (108, 195622), (126, 167676), (157, 134568), (168, 125757), (178, 118692), (189, 111784), (216, 97811), (252, 83838), (267, 79128), (314, 67284), (356, 59346), (378, 55892), (471, 44856), (504, 41919), (534, 39564), (623, 33912), (628, 33642), (712, 29673), (756, 27946), (801, 26376), (942, 22428), (1068, 19782), (1099, 19224), (1246, 16956), (1256, 16821), (1413, 14952), (1512, 13973), (1602, 13188), (1869, 11304), (1884, 11214), (2136, 9891), (2198, 9612), (2403, 8792), (2492, 8478), (2826, 7476), (3204, 6594), (3297, 6408), (3738, 5652), (3768, 5607), (4239, 4984), (4396, 4806)]