21695590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{309937}}^1$

素因数の和:309951

約数の個数: 16

約数和(自身を含む): 44631072

約数和(自身を除く): 22935482

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 309937, 619874, 1549685, 2169559, 3099370, 4339118, 10847795, 21695590]

約数ペア:

[(1, 21695590), (2, 10847795), (5, 4339118), (7, 3099370), (10, 2169559), (14, 1549685), (35, 619874), (70, 309937)]