21309794

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{509}}^1$

素因数の和:706

約数の個数: 24

約数和(自身を含む): 35407260

約数和(自身を除く): 14097466

約数列:

[1, 2, 11, 22, 121, 173, 242, 346, 509, 1018, 1903, 3806, 5599, 11198, 20933, 41866, 61589, 88057, 123178, 176114, 968627, 1937254, 10654897, 21309794]

約数ペア:

[(1, 21309794), (2, 10654897), (11, 1937254), (22, 968627), (121, 176114), (173, 123178), (242, 88057), (346, 61589), (509, 41866), (1018, 20933), (1903, 11198), (3806, 5599)]