20436464

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20939}}^1$

素因数の和:21008

約数の個数: 20

約数和(自身を含む): 40246680

約数和(自身を除く): 19810216

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20939, 41878, 83756, 167512, 335024, 1277279, 2554558, 5109116, 10218232, 20436464]

約数ペア:

[(1, 20436464), (2, 10218232), (4, 5109116), (8, 2554558), (16, 1277279), (61, 335024), (122, 167512), (244, 83756), (488, 41878), (976, 20939)]