638516073

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{22397}}^1$

素因数の和:22473

約数の個数: 32

約数和(自身を含む): 993396096

約数和(自身を除く): 354880023

約数列:

[1, 3, 13, 17, 39, 43, 51, 129, 221, 559, 663, 731, 1677, 2193, 9503, 22397, 28509, 67191, 291161, 380749, 873483, 963071, 1142247, 2889213, 4949737, 12519923, 14849211, 16372207, 37559769, 49116621, 212838691, 638516073]

約数ペア:

[(1, 638516073), (3, 212838691), (13, 49116621), (17, 37559769), (39, 16372207), (43, 14849211), (51, 12519923), (129, 4949737), (221, 2889213), (559, 1142247), (663, 963071), (731, 873483), (1677, 380749), (2193, 291161), (9503, 67191), (22397, 28509)]