20199224591

素因数分解:

$7^1\times {\mathrm{13}}^4\times {\mathrm{71}}^1\times {\mathrm{1423}}^1$

素因数の和:1553

約数の個数: 40

約数和(自身を含む): 25378550784

約数和(自身を除く): 5179326193

約数列:

[1, 7, 13, 71, 91, 169, 497, 923, 1183, 1423, 2197, 6461, 9961, 11999, 15379, 18499, 28561, 83993, 101033, 129493, 155987, 199927, 240487, 707231, 1091909, 1313429, 1683409, 2027831, 3126331, 9194003, 14194817, 17074577, 21884317, 40642303, 119522039, 221969501, 284496121, 1553786507, 2885603513, 20199224591]

約数ペア:

[(1, 20199224591), (7, 2885603513), (13, 1553786507), (71, 284496121), (91, 221969501), (169, 119522039), (497, 40642303), (923, 21884317), (1183, 17074577), (1423, 14194817), (2197, 9194003), (6461, 3126331), (9961, 2027831), (11999, 1683409), (15379, 1313429), (18499, 1091909), (28561, 707231), (83993, 240487), (101033, 199927), (129493, 155987)]