247291209

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{227081}}^1$

素因数の和:227109

約数の個数: 18

約数和(自身を含む): 392624778

約数和(自身を除く): 145333569

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 227081, 681243, 2043729, 2497891, 7493673, 22481019, 27476801, 82430403, 247291209]

約数ペア:

[(1, 247291209), (3, 82430403), (9, 27476801), (11, 22481019), (33, 7493673), (99, 2497891), (121, 2043729), (363, 681243), (1089, 227081)]