138415431

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2687}}^1$

素因数の和:2931

約数の個数: 32

約数和(自身を含む): 231211008

約数和(自身を除く): 92795577

約数列:

[1, 3, 7, 11, 21, 33, 77, 223, 231, 669, 1561, 2453, 2687, 4683, 7359, 8061, 17171, 18809, 29557, 51513, 56427, 88671, 206899, 599201, 620697, 1797603, 4194407, 6591211, 12583221, 19773633, 46138477, 138415431]

約数ペア:

[(1, 138415431), (3, 46138477), (7, 19773633), (11, 12583221), (21, 6591211), (33, 4194407), (77, 1797603), (223, 620697), (231, 599201), (669, 206899), (1561, 88671), (2453, 56427), (2687, 51513), (4683, 29557), (7359, 18809), (8061, 17171)]