28812819

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{3259}}^1$

素因数の和:3690

約数の個数: 16

約数和(自身を含む): 44023040

約数和(自身を除く): 15210221

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 3259, 8841, 9777, 22813, 68439, 1372039, 4116117, 9604273, 28812819]

約数ペア:

[(1, 28812819), (3, 9604273), (7, 4116117), (21, 1372039), (421, 68439), (1263, 22813), (2947, 9777), (3259, 8841)]