21232008

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:531

約数の個数: 96

約数和(自身を含む): 66518400

約数和(自身を除く): 45286392

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 103, 126, 168, 206, 252, 309, 409, 412, 504, 618, 721, 818, 824, 927, 1227, 1236, 1442, 1636, 1854, 2163, 2454, 2472, 2863, 2884, 3272, 3681, 3708, 4326, 4908, 5726, 5768, 6489, 7362, 7416, 8589, 8652, 9816, 11452, 12978, 14724, 17178, 17304, 22904, 25767, 25956, 29448, 34356, 42127, 51534, 51912, 68712, 84254, 103068, 126381, 168508, 206136, 252762, 294889, 337016, 379143, 505524, 589778, 758286, 884667, 1011048, 1179556, 1516572, 1769334, 2359112, 2654001, 3033144, 3538668, 5308002, 7077336, 10616004, 21232008]

約数ペア:

[(1, 21232008), (2, 10616004), (3, 7077336), (4, 5308002), (6, 3538668), (7, 3033144), (8, 2654001), (9, 2359112), (12, 1769334), (14, 1516572), (18, 1179556), (21, 1011048), (24, 884667), (28, 758286), (36, 589778), (42, 505524), (56, 379143), (63, 337016), (72, 294889), (84, 252762), (103, 206136), (126, 168508), (168, 126381), (206, 103068), (252, 84254), (309, 68712), (409, 51912), (412, 51534), (504, 42127), (618, 34356), (721, 29448), (818, 25956), (824, 25767), (927, 22904), (1227, 17304), (1236, 17178), (1442, 14724), (1636, 12978), (1854, 11452), (2163, 9816), (2454, 8652), (2472, 8589), (2863, 7416), (2884, 7362), (3272, 6489), (3681, 5768), (3708, 5726), (4326, 4908)]