21539672

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{479}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 29609128

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 73, 77, 88, 146, 154, 292, 308, 479, 511, 584, 616, 803, 958, 1022, 1606, 1916, 2044, 3212, 3353, 3832, 4088, 5269, 5621, 6424, 6706, 10538, 11242, 13412, 21076, 22484, 26824, 34967, 36883, 42152, 44968, 69934, 73766, 139868, 147532, 244769, 279736, 295064, 384637, 489538, 769274, 979076, 1538548, 1958152, 2692459, 3077096, 5384918, 10769836, 21539672]

約数ペア:

[(1, 21539672), (2, 10769836), (4, 5384918), (7, 3077096), (8, 2692459), (11, 1958152), (14, 1538548), (22, 979076), (28, 769274), (44, 489538), (56, 384637), (73, 295064), (77, 279736), (88, 244769), (146, 147532), (154, 139868), (292, 73766), (308, 69934), (479, 44968), (511, 42152), (584, 36883), (616, 34967), (803, 26824), (958, 22484), (1022, 21076), (1606, 13412), (1916, 11242), (2044, 10538), (3212, 6706), (3353, 6424), (3832, 5621), (4088, 5269)]