20517894

素因数分解:

$2^1\times 3^3\times {\mathrm{409}}^1\times {\mathrm{929}}^1$

素因数の和:1349

約数の個数: 32

約数和(自身を含む): 45756000

約数和(自身を除く): 25238106

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 409, 818, 929, 1227, 1858, 2454, 2787, 3681, 5574, 7362, 8361, 11043, 16722, 22086, 25083, 50166, 379961, 759922, 1139883, 2279766, 3419649, 6839298, 10258947, 20517894]

約数ペア:

[(1, 20517894), (2, 10258947), (3, 6839298), (6, 3419649), (9, 2279766), (18, 1139883), (27, 759922), (54, 379961), (409, 50166), (818, 25083), (929, 22086), (1227, 16722), (1858, 11043), (2454, 8361), (2787, 7362), (3681, 5574)]