20756847

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 29840400

約数和(自身を除く): 9083553

約数列:

[1, 3, 17, 51, 89, 267, 269, 289, 807, 867, 1513, 4539, 4573, 13719, 23941, 25721, 71823, 77163, 77741, 233223, 406997, 1220991, 6918949, 20756847]

約数ペア:

[(1, 20756847), (3, 6918949), (17, 1220991), (51, 406997), (89, 233223), (267, 77741), (269, 77163), (289, 71823), (807, 25721), (867, 23941), (1513, 13719), (4539, 4573)]