248839479

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 435916800

約数和(自身を除く): 187077321

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 109, 141, 189, 257, 327, 329, 423, 763, 771, 981, 987, 1269, 1799, 2289, 2313, 2943, 2961, 5123, 5397, 6867, 6939, 8883, 12079, 15369, 16191, 20601, 28013, 35861, 36237, 46107, 48573, 84039, 84553, 107583, 108711, 138321, 196091, 252117, 253659, 322749, 326133, 588273, 756351, 760977, 968247, 1316611, 1764819, 2282931, 3949833, 5294457, 9216277, 11849499, 27648831, 35548497, 82946493, 248839479]

約数ペア:

[(1, 248839479), (3, 82946493), (7, 35548497), (9, 27648831), (21, 11849499), (27, 9216277), (47, 5294457), (63, 3949833), (109, 2282931), (141, 1764819), (189, 1316611), (257, 968247), (327, 760977), (329, 756351), (423, 588273), (763, 326133), (771, 322749), (981, 253659), (987, 252117), (1269, 196091), (1799, 138321), (2289, 108711), (2313, 107583), (2943, 84553), (2961, 84039), (5123, 48573), (5397, 46107), (6867, 36237), (6939, 35861), (8883, 28013), (12079, 20601), (15369, 16191)]