291277287

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{65119}}^1$

素因数の和:65203

約数の個数: 24

約数和(自身を含む): 487618560

約数和(自身を除く): 196341273

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 65119, 195357, 455833, 586071, 1367499, 4102497, 4623449, 13870347, 32364143, 41611041, 97092429, 291277287]

約数ペア:

[(1, 291277287), (3, 97092429), (7, 41611041), (9, 32364143), (21, 13870347), (63, 4623449), (71, 4102497), (213, 1367499), (497, 586071), (639, 455833), (1491, 195357), (4473, 65119)]