221457561

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{120817}}^1$

素因数の和:120880

約数の個数: 16

約数和(自身を含む): 324758784

約数和(自身を除く): 103301223

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 120817, 362451, 1570621, 4711863, 5678399, 17035197, 73819187, 221457561]

約数ペア:

[(1, 221457561), (3, 73819187), (13, 17035197), (39, 5678399), (47, 4711863), (141, 1570621), (611, 362451), (1833, 120817)]