21147768

素因数分解:

$2^3\times 3^2\times {\mathrm{419}}^1\times {\mathrm{701}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 57493800

約数和(自身を除く): 36346032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 419, 701, 838, 1257, 1402, 1676, 2103, 2514, 2804, 3352, 3771, 4206, 5028, 5608, 6309, 7542, 8412, 10056, 12618, 15084, 16824, 25236, 30168, 50472, 293719, 587438, 881157, 1174876, 1762314, 2349752, 2643471, 3524628, 5286942, 7049256, 10573884, 21147768]

約数ペア:

[(1, 21147768), (2, 10573884), (3, 7049256), (4, 5286942), (6, 3524628), (8, 2643471), (9, 2349752), (12, 1762314), (18, 1174876), (24, 881157), (36, 587438), (72, 293719), (419, 50472), (701, 30168), (838, 25236), (1257, 16824), (1402, 15084), (1676, 12618), (2103, 10056), (2514, 8412), (2804, 7542), (3352, 6309), (3771, 5608), (4206, 5028)]