21244587

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11117}}^1$

素因数の和:11147

約数の個数: 24

約数和(自身を含む): 35488656

約数和(自身を除く): 14244069

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11117, 33351, 77819, 144521, 233457, 433563, 544733, 1011647, 1634199, 3034941, 7081529, 21244587]

約数ペア:

[(1, 21244587), (3, 7081529), (7, 3034941), (13, 1634199), (21, 1011647), (39, 544733), (49, 433563), (91, 233457), (147, 144521), (273, 77819), (637, 33351), (1911, 11117)]