21396368

素因数分解:

$2^4\times 7^1\times {\mathrm{191039}}^1$

素因数の和:191054

約数の個数: 20

約数和(自身を含む): 47377920

約数和(自身を除く): 25981552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191039, 382078, 764156, 1337273, 1528312, 2674546, 3056624, 5349092, 10698184, 21396368]

約数ペア:

[(1, 21396368), (2, 10698184), (4, 5349092), (7, 3056624), (8, 2674546), (14, 1528312), (16, 1337273), (28, 764156), (56, 382078), (112, 191039)]