20458139

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:478

約数の個数: 16

約数和(自身を含む): 22819104

約数和(自身を除く): 2360965

約数列:

[1, 13, 41, 131, 293, 533, 1703, 3809, 5371, 12013, 38383, 69823, 156169, 498979, 1573703, 20458139]

約数ペア:

[(1, 20458139), (13, 1573703), (41, 498979), (131, 156169), (293, 69823), (533, 38383), (1703, 12013), (3809, 5371)]