16940427

素因数分解:

$3^1\times 7^3\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 26764800

約数和(自身を除く): 9824373

約数列:

[1, 3, 7, 21, 49, 101, 147, 163, 303, 343, 489, 707, 1029, 1141, 2121, 3423, 4949, 7987, 14847, 16463, 23961, 34643, 49389, 55909, 103929, 115241, 167727, 345723, 806687, 2420061, 5646809, 16940427]

約数ペア:

[(1, 16940427), (3, 5646809), (7, 2420061), (21, 806687), (49, 345723), (101, 167727), (147, 115241), (163, 103929), (303, 55909), (343, 49389), (489, 34643), (707, 23961), (1029, 16463), (1141, 14847), (2121, 7987), (3423, 4949)]