7890219

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 12160512

約数和(自身を除く): 4270293

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 811, 1081, 2433, 3243, 7299, 9729, 18653, 38117, 55959, 114351, 167877, 343053, 876691, 2630073, 7890219]

約数ペア:

[(1, 7890219), (3, 2630073), (9, 876691), (23, 343053), (47, 167877), (69, 114351), (141, 55959), (207, 38117), (423, 18653), (811, 9729), (1081, 7299), (2433, 3243)]