20329768

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61981}}^1$

素因数の和:62028

約数の個数: 16

約数和(自身を含む): 39048660

約数和(自身を除く): 18718892

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 61981, 123962, 247924, 495848, 2541221, 5082442, 10164884, 20329768]

約数ペア:

[(1, 20329768), (2, 10164884), (4, 5082442), (8, 2541221), (41, 495848), (82, 247924), (164, 123962), (328, 61981)]