18471321

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{20731}}^1$

素因数の和:20754

約数の個数: 20

約数和(自身を含む): 30102864

約数和(自身を除く): 11631543

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 20731, 62193, 186579, 228041, 559737, 684123, 1679211, 2052369, 6157107, 18471321]

約数ペア:

[(1, 18471321), (3, 6157107), (9, 2052369), (11, 1679211), (27, 684123), (33, 559737), (81, 228041), (99, 186579), (297, 62193), (891, 20731)]