21000921624

素因数分解:

$2^3\times 3^3\times {\mathrm{157}}^1\times {\mathrm{619277}}^1$

素因数の和:619449

約数の個数: 64

約数和(自身を含む): 58707554400

約数和(自身を除く): 37706632776

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 157, 216, 314, 471, 628, 942, 1256, 1413, 1884, 2826, 3768, 4239, 5652, 8478, 11304, 16956, 33912, 619277, 1238554, 1857831, 2477108, 3715662, 4954216, 5573493, 7431324, 11146986, 14862648, 16720479, 22293972, 33440958, 44587944, 66881916, 97226489, 133763832, 194452978, 291679467, 388905956, 583358934, 777811912, 875038401, 1166717868, 1750076802, 2333435736, 2625115203, 3500153604, 5250230406, 7000307208, 10500460812, 21000921624]

約数ペア:

[(1, 21000921624), (2, 10500460812), (3, 7000307208), (4, 5250230406), (6, 3500153604), (8, 2625115203), (9, 2333435736), (12, 1750076802), (18, 1166717868), (24, 875038401), (27, 777811912), (36, 583358934), (54, 388905956), (72, 291679467), (108, 194452978), (157, 133763832), (216, 97226489), (314, 66881916), (471, 44587944), (628, 33440958), (942, 22293972), (1256, 16720479), (1413, 14862648), (1884, 11146986), (2826, 7431324), (3768, 5573493), (4239, 4954216), (5652, 3715662), (8478, 2477108), (11304, 1857831), (16956, 1238554), (33912, 619277)]