21960904

素因数分解:

$2^3\times 7^1\times {\mathrm{392159}}^1$

素因数の和:392172

約数の個数: 16

約数和(自身を含む): 47059200

約数和(自身を除く): 25098296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 392159, 784318, 1568636, 2745113, 3137272, 5490226, 10980452, 21960904]

約数ペア:

[(1, 21960904), (2, 10980452), (4, 5490226), (7, 3137272), (8, 2745113), (14, 1568636), (28, 784318), (56, 392159)]