21397654

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1\times {\mathrm{571}}^1$

素因数の和:1071

約数の個数: 16

約数和(自身を含む): 33008976

約数和(自身を除く): 11611322

約数列:

[1, 2, 41, 82, 457, 571, 914, 1142, 18737, 23411, 37474, 46822, 260947, 521894, 10698827, 21397654]

約数ペア:

[(1, 21397654), (2, 10698827), (41, 521894), (82, 260947), (457, 46822), (571, 37474), (914, 23411), (1142, 18737)]