20768218

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1\times {\mathrm{887}}^1$

素因数の和:1421

約数の個数: 16

約数和(自身を含む): 32607360

約数和(自身を除く): 11839142

約数列:

[1, 2, 23, 46, 509, 887, 1018, 1774, 11707, 20401, 23414, 40802, 451483, 902966, 10384109, 20768218]

約数ペア:

[(1, 20768218), (2, 10384109), (23, 902966), (46, 451483), (509, 40802), (887, 23414), (1018, 20401), (1774, 11707)]