720186417

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{398113}}^1$

素因数の和:398189

約数の個数: 16

約数和(自身を含む): 1082870080

約数和(自身を除く): 362683663

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 398113, 1194339, 3583017, 10749051, 26673571, 80020713, 240062139, 720186417]

約数ペア:

[(1, 720186417), (3, 240062139), (9, 80020713), (27, 26673571), (67, 10749051), (201, 3583017), (603, 1194339), (1809, 398113)]