20903515

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1583}}^1$

素因数の和:1746

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 5707685

約数列:

[1, 5, 19, 95, 139, 695, 1583, 2641, 7915, 13205, 30077, 150385, 220037, 1100185, 4180703, 20903515]

約数ペア:

[(1, 20903515), (5, 4180703), (19, 1100185), (95, 220037), (139, 150385), (695, 30077), (1583, 13205), (2641, 7915)]