13205979

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 20097792

約数和(自身を除く): 6891813

約数列:

[1, 3, 9, 23, 69, 131, 207, 393, 487, 1179, 1461, 3013, 4383, 9039, 11201, 27117, 33603, 63797, 100809, 191391, 574173, 1467331, 4401993, 13205979]

約数ペア:

[(1, 13205979), (3, 4401993), (9, 1467331), (23, 574173), (69, 191391), (131, 100809), (207, 63797), (393, 33603), (487, 27117), (1179, 11201), (1461, 9039), (3013, 4383)]