21052472

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 47523840

約数和(自身を除く): 26471368

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 67, 124, 134, 181, 217, 248, 268, 362, 434, 469, 536, 724, 868, 938, 1267, 1448, 1736, 1876, 2077, 2534, 3752, 4154, 5068, 5611, 8308, 10136, 11222, 12127, 14539, 16616, 22444, 24254, 29078, 39277, 44888, 48508, 58156, 78554, 84889, 97016, 116312, 157108, 169778, 314216, 339556, 375937, 679112, 751874, 1503748, 2631559, 3007496, 5263118, 10526236, 21052472]

約数ペア:

[(1, 21052472), (2, 10526236), (4, 5263118), (7, 3007496), (8, 2631559), (14, 1503748), (28, 751874), (31, 679112), (56, 375937), (62, 339556), (67, 314216), (124, 169778), (134, 157108), (181, 116312), (217, 97016), (248, 84889), (268, 78554), (362, 58156), (434, 48508), (469, 44888), (536, 39277), (724, 29078), (868, 24254), (938, 22444), (1267, 16616), (1448, 14539), (1736, 12127), (1876, 11222), (2077, 10136), (2534, 8308), (3752, 5611), (4154, 5068)]