221510344

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 464849280

約数和(自身を除く): 243338936

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 121, 142, 242, 284, 293, 484, 568, 586, 781, 968, 1172, 1331, 1562, 2344, 2662, 3124, 3223, 5324, 6248, 6446, 8591, 10648, 12892, 17182, 20803, 25784, 34364, 35453, 41606, 68728, 70906, 83212, 94501, 141812, 166424, 189002, 228833, 283624, 378004, 389983, 457666, 756008, 779966, 915332, 1559932, 1830664, 2517163, 3119864, 5034326, 10068652, 20137304, 27688793, 55377586, 110755172, 221510344]

約数ペア:

[(1, 221510344), (2, 110755172), (4, 55377586), (8, 27688793), (11, 20137304), (22, 10068652), (44, 5034326), (71, 3119864), (88, 2517163), (121, 1830664), (142, 1559932), (242, 915332), (284, 779966), (293, 756008), (484, 457666), (568, 389983), (586, 378004), (781, 283624), (968, 228833), (1172, 189002), (1331, 166424), (1562, 141812), (2344, 94501), (2662, 83212), (3124, 70906), (3223, 68728), (5324, 41606), (6248, 35453), (6446, 34364), (8591, 25784), (10648, 20803), (12892, 17182)]