21356904

素因数分解:

$2^3\times 3^1\times {\mathrm{889871}}^1$

素因数の和:889880

約数の個数: 16

約数和(自身を含む): 53392320

約数和(自身を除く): 32035416

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 889871, 1779742, 2669613, 3559484, 5339226, 7118968, 10678452, 21356904]

約数ペア:

[(1, 21356904), (2, 10678452), (3, 7118968), (4, 5339226), (6, 3559484), (8, 2669613), (12, 1779742), (24, 889871)]