2021520130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{28878859}}^1$

素因数の和:28878873

約数の個数: 16

約数和(自身を含む): 4158555840

約数和(自身を除く): 2137035710

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 28878859, 57757718, 144394295, 202152013, 288788590, 404304026, 1010760065, 2021520130]

約数ペア:

[(1, 2021520130), (2, 1010760065), (5, 404304026), (7, 288788590), (10, 202152013), (14, 144394295), (35, 57757718), (70, 28878859)]