21568904

素因数分解:

$2^3\times 7^1\times {\mathrm{385159}}^1$

素因数の和:385172

約数の個数: 16

約数和(自身を含む): 46219200

約数和(自身を除く): 24650296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 385159, 770318, 1540636, 2696113, 3081272, 5392226, 10784452, 21568904]

約数ペア:

[(1, 21568904), (2, 10784452), (4, 5392226), (7, 3081272), (8, 2696113), (14, 1540636), (28, 770318), (56, 385159)]