638330943

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{569}}^1\times {\mathrm{21997}}^1$

素因数の和:22586

約数の個数: 16

約数和(自身を含む): 902797920

約数和(自身を除く): 264466977

約数列:

[1, 3, 17, 51, 569, 1707, 9673, 21997, 29019, 65991, 373949, 1121847, 12516293, 37548879, 212776981, 638330943]

約数ペア:

[(1, 638330943), (3, 212776981), (17, 37548879), (51, 12516293), (569, 1121847), (1707, 373949), (9673, 65991), (21997, 29019)]