21611816

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{142183}}^1$

素因数の和:142208

約数の個数: 16

約数和(自身を含む): 42655200

約数和(自身を除く): 21043384

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 142183, 284366, 568732, 1137464, 2701477, 5402954, 10805908, 21611816]

約数ペア:

[(1, 21611816), (2, 10805908), (4, 5402954), (8, 2701477), (19, 1137464), (38, 568732), (76, 284366), (152, 142183)]