853923

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 24

約数和(自身を含む): 1368912

約数和(自身を除く): 514989

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 157, 259, 471, 777, 1099, 1813, 3297, 5439, 5809, 7693, 17427, 23079, 40663, 121989, 284641, 853923]

約数ペア:

[(1, 853923), (3, 284641), (7, 121989), (21, 40663), (37, 23079), (49, 17427), (111, 7693), (147, 5809), (157, 5439), (259, 3297), (471, 1813), (777, 1099)]