90894027

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 141115392

約数和(自身を除く): 50221365

約数列:

[1, 3, 7, 21, 127, 173, 197, 381, 519, 591, 889, 1211, 1379, 2667, 3633, 4137, 21971, 25019, 34081, 65913, 75057, 102243, 153797, 175133, 238567, 461391, 525399, 715701, 4328287, 12984861, 30298009, 90894027]

約数ペア:

[(1, 90894027), (3, 30298009), (7, 12984861), (21, 4328287), (127, 715701), (173, 525399), (197, 461391), (381, 238567), (519, 175133), (591, 153797), (889, 102243), (1211, 75057), (1379, 65913), (2667, 34081), (3633, 25019), (4137, 21971)]