20847722

素因数分解:

$2^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{7559}}^1$

素因数の和:7765

約数の個数: 16

約数和(自身を含む): 35925120

約数和(自身を除く): 15077398

約数列:

[1, 2, 7, 14, 197, 394, 1379, 2758, 7559, 15118, 52913, 105826, 1489123, 2978246, 10423861, 20847722]

約数ペア:

[(1, 20847722), (2, 10423861), (7, 2978246), (14, 1489123), (197, 105826), (394, 52913), (1379, 15118), (2758, 7559)]