20197004877

素因数分解:

$3^2\times 7^2\times {\mathrm{571}}^1\times {\mathrm{80207}}^1$

素因数の和:80798

約数の個数: 36

約数和(自身を含む): 33996321216

約数和(自身を除く): 13799316339

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 571, 1713, 3997, 5139, 11991, 27979, 35973, 80207, 83937, 240621, 251811, 561449, 721863, 1684347, 3930143, 5053041, 11790429, 35371287, 45798197, 137394591, 320587379, 412183773, 961762137, 2244111653, 2885286411, 6732334959, 20197004877]

約数ペア:

[(1, 20197004877), (3, 6732334959), (7, 2885286411), (9, 2244111653), (21, 961762137), (49, 412183773), (63, 320587379), (147, 137394591), (441, 45798197), (571, 35371287), (1713, 11790429), (3997, 5053041), (5139, 3930143), (11991, 1684347), (27979, 721863), (35973, 561449), (80207, 251811), (83937, 240621)]