20005097

素因数分解:

$7^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 23358720

約数和(自身を除く): 3353623

約数列:

[1, 7, 109, 157, 167, 763, 1099, 1169, 17113, 18203, 26219, 119791, 127421, 183533, 2857871, 20005097]

約数ペア:

[(1, 20005097), (7, 2857871), (109, 183533), (157, 127421), (167, 119791), (763, 26219), (1099, 18203), (1169, 17113)]