78839873

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{4457}}^1$

素因数の和:4509

約数の個数: 18

約数和(自身を含む): 96814386

約数和(自身を除く): 17974513

約数列:

[1, 7, 19, 49, 133, 361, 931, 2527, 4457, 17689, 31199, 84683, 218393, 592781, 1608977, 4149467, 11262839, 78839873]

約数ペア:

[(1, 78839873), (7, 11262839), (19, 4149467), (49, 1608977), (133, 592781), (361, 218393), (931, 84683), (2527, 31199), (4457, 17689)]