21473769

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{433}}^1$

素因数の和:768

約数の個数: 16

約数和(自身を含む): 29275904

約数和(自身を除く): 7802135

約数列:

[1, 3, 61, 183, 271, 433, 813, 1299, 16531, 26413, 49593, 79239, 117343, 352029, 7157923, 21473769]

約数ペア:

[(1, 21473769), (3, 7157923), (61, 352029), (183, 117343), (271, 79239), (433, 49593), (813, 26413), (1299, 16531)]