207957981

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{223}}^1\times {\mathrm{367}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 350830592

約数和(自身を除く): 142872611

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 223, 231, 363, 367, 669, 847, 1101, 1561, 2453, 2541, 2569, 4037, 4683, 7359, 7707, 12111, 17171, 26983, 28259, 44407, 51513, 80949, 81841, 84777, 133221, 188881, 245523, 310849, 566643, 572887, 900251, 932547, 1718661, 2700753, 6301757, 9902761, 18905271, 29708283, 69319327, 207957981]

約数ペア:

[(1, 207957981), (3, 69319327), (7, 29708283), (11, 18905271), (21, 9902761), (33, 6301757), (77, 2700753), (121, 1718661), (223, 932547), (231, 900251), (363, 572887), (367, 566643), (669, 310849), (847, 245523), (1101, 188881), (1561, 133221), (2453, 84777), (2541, 81841), (2569, 80949), (4037, 51513), (4683, 44407), (7359, 28259), (7707, 26983), (12111, 17171)]