40487643

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20731}}^1$

素因数の和:20775

約数の個数: 24

約数和(自身を含む): 68996096

約数和(自身を除く): 28508453

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 20731, 62193, 145117, 186579, 435351, 642661, 1306053, 1927983, 4498627, 5783949, 13495881, 40487643]

約数ペア:

[(1, 40487643), (3, 13495881), (7, 5783949), (9, 4498627), (21, 1927983), (31, 1306053), (63, 642661), (93, 435351), (217, 186579), (279, 145117), (651, 62193), (1953, 20731)]