21809132926

素因数分解:

$2^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{3172699}}^1$

素因数の和:3173199

約数の個数: 16

約数和(自身を含む): 37463241600

約数和(自身を除く): 15654108674

約数列:

[1, 2, 7, 14, 491, 982, 3437, 6874, 3172699, 6345398, 22208893, 44417786, 1557795209, 3115590418, 10904566463, 21809132926]

約数ペア:

[(1, 21809132926), (2, 10904566463), (7, 3115590418), (14, 1557795209), (491, 44417786), (982, 22208893), (3437, 6345398), (6874, 3172699)]