20199538

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{4463}}^1$

素因数の和:4569

約数の個数: 16

約数和(自身を含む): 31712256

約数和(自身を除く): 11512718

約数列:

[1, 2, 31, 62, 73, 146, 2263, 4463, 4526, 8926, 138353, 276706, 325799, 651598, 10099769, 20199538]

約数ペア:

[(1, 20199538), (2, 10099769), (31, 651598), (62, 325799), (73, 276706), (146, 138353), (2263, 8926), (4463, 4526)]