21712208

素因数分解:

$2^4\times 7^1\times {\mathrm{193859}}^1$

素因数の和:193874

約数の個数: 20

約数和(自身を含む): 48077280

約数和(自身を除く): 26365072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193859, 387718, 775436, 1357013, 1550872, 2714026, 3101744, 5428052, 10856104, 21712208]

約数ペア:

[(1, 21712208), (2, 10856104), (4, 5428052), (7, 3101744), (8, 2714026), (14, 1550872), (16, 1357013), (28, 775436), (56, 387718), (112, 193859)]