21743855

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{27011}}^1$

素因数の和:27046

約数の個数: 16

約数和(自身を含む): 31117824

約数和(自身を除く): 9373969

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 27011, 135055, 189077, 621253, 945385, 3106265, 4348771, 21743855]

約数ペア:

[(1, 21743855), (5, 4348771), (7, 3106265), (23, 945385), (35, 621253), (115, 189077), (161, 135055), (805, 27011)]