638830071

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{716981}}^1$

素因数の和:717004

約数の個数: 20

約数和(自身を含む): 1041057864

約数和(自身を除く): 402227793

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 716981, 2150943, 6452829, 7886791, 19358487, 23660373, 58075461, 70981119, 212943357, 638830071]

約数ペア:

[(1, 638830071), (3, 212943357), (9, 70981119), (11, 58075461), (27, 23660373), (33, 19358487), (81, 7886791), (99, 6452829), (297, 2150943), (891, 716981)]