21161072

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7307}}^1$

素因数の和:7496

約数の個数: 20

約数和(自身を含む): 41231736

約数和(自身を除く): 20070664

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7307, 14614, 29228, 58456, 116912, 1322567, 2645134, 5290268, 10580536, 21161072]

約数ペア:

[(1, 21161072), (2, 10580536), (4, 5290268), (8, 2645134), (16, 1322567), (181, 116912), (362, 58456), (724, 29228), (1448, 14614), (2896, 7307)]