20131990151

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{159503}}^1$

素因数の和:159615

約数の個数: 32

約数和(自身を含む): 26439383040

約数和(自身を除く): 6307392889

約数列:

[1, 7, 13, 19, 73, 91, 133, 247, 511, 949, 1387, 1729, 6643, 9709, 18031, 126217, 159503, 1116521, 2073539, 3030557, 11643719, 14514773, 21213899, 39397241, 81506033, 151368347, 221230661, 275780687, 1059578429, 1548614627, 2875998593, 20131990151]

約数ペア:

[(1, 20131990151), (7, 2875998593), (13, 1548614627), (19, 1059578429), (73, 275780687), (91, 221230661), (133, 151368347), (247, 81506033), (511, 39397241), (949, 21213899), (1387, 14514773), (1729, 11643719), (6643, 3030557), (9709, 2073539), (18031, 1116521), (126217, 159503)]