64640247

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{23497}}^1$

素因数の和:23638

約数の個数: 16

約数和(自身を含む): 99255552

約数和(自身を除く): 34615305

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 23497, 70491, 164479, 493437, 3078107, 9234321, 21546749, 64640247]

約数ペア:

[(1, 64640247), (3, 21546749), (7, 9234321), (21, 3078107), (131, 493437), (393, 164479), (917, 70491), (2751, 23497)]