21108484

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1147

約数の個数: 24

約数和(自身を含む): 38003840

約数和(自身を除く): 16895356

約数列:

[1, 2, 4, 67, 79, 134, 158, 268, 316, 997, 1994, 3988, 5293, 10586, 21172, 66799, 78763, 133598, 157526, 267196, 315052, 5277121, 10554242, 21108484]

約数ペア:

[(1, 21108484), (2, 10554242), (4, 5277121), (67, 315052), (79, 267196), (134, 157526), (158, 133598), (268, 78763), (316, 66799), (997, 21172), (1994, 10586), (3988, 5293)]