21725768

素因数分解:

$2^3\times {\mathrm{491}}^1\times {\mathrm{5531}}^1$

素因数の和:6028

約数の個数: 16

約数和(自身を含む): 40826160

約数和(自身を除く): 19100392

約数列:

[1, 2, 4, 8, 491, 982, 1964, 3928, 5531, 11062, 22124, 44248, 2715721, 5431442, 10862884, 21725768]

約数ペア:

[(1, 21725768), (2, 10862884), (4, 5431442), (8, 2715721), (491, 44248), (982, 22124), (1964, 11062), (3928, 5531)]