21543321

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{2503}}^1$

素因数の和:2676

約数の個数: 16

約数和(自身を含む): 30448640

約数和(自身を除く): 8905319

約数列:

[1, 3, 19, 57, 151, 453, 2503, 2869, 7509, 8607, 47557, 142671, 377953, 1133859, 7181107, 21543321]

約数ペア:

[(1, 21543321), (3, 7181107), (19, 1133859), (57, 377953), (151, 142671), (453, 47557), (2503, 8607), (2869, 7509)]