21677356

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{1009}}^1$

素因数の和:1185

約数の個数: 24

約数和(自身を含む): 39196080

約数和(自身を除く): 17518724

約数列:

[1, 2, 4, 41, 82, 131, 164, 262, 524, 1009, 2018, 4036, 5371, 10742, 21484, 41369, 82738, 132179, 165476, 264358, 528716, 5419339, 10838678, 21677356]

約数ペア:

[(1, 21677356), (2, 10838678), (4, 5419339), (41, 528716), (82, 264358), (131, 165476), (164, 132179), (262, 82738), (524, 41369), (1009, 21484), (2018, 10742), (4036, 5371)]