64539639

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 98081280

約数和(自身を除く): 33541641

約数列:

[1, 3, 9, 27, 71, 131, 213, 257, 393, 639, 771, 1179, 1917, 2313, 3537, 6939, 9301, 18247, 27903, 33667, 54741, 83709, 101001, 164223, 251127, 303003, 492669, 909009, 2390357, 7171071, 21513213, 64539639]

約数ペア:

[(1, 64539639), (3, 21513213), (9, 7171071), (27, 2390357), (71, 909009), (131, 492669), (213, 303003), (257, 251127), (393, 164223), (639, 101001), (771, 83709), (1179, 54741), (1917, 33667), (2313, 27903), (3537, 18247), (6939, 9301)]