21162195

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9221}}^1$

素因数の和:9252

約数の個数: 32

約数和(自身を含む): 39839040

約数和(自身を除く): 18676845

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9221, 27663, 46105, 82989, 138315, 156757, 248967, 414945, 470271, 783785, 1244835, 1410813, 2351355, 4232439, 7054065, 21162195]

約数ペア:

[(1, 21162195), (3, 7054065), (5, 4232439), (9, 2351355), (15, 1410813), (17, 1244835), (27, 783785), (45, 470271), (51, 414945), (85, 248967), (135, 156757), (153, 138315), (255, 82989), (459, 46105), (765, 27663), (2295, 9221)]