20165878

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{4051}}^1$

素因数の和:4203

約数の個数: 16

約数和(自身を含む): 32091840

約数和(自身を除く): 11925962

約数列:

[1, 2, 19, 38, 131, 262, 2489, 4051, 4978, 8102, 76969, 153938, 530681, 1061362, 10082939, 20165878]

約数ペア:

[(1, 20165878), (2, 10082939), (19, 1061362), (38, 530681), (131, 153938), (262, 76969), (2489, 8102), (4051, 4978)]