20954075

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{20443}}^1$

素因数の和:20494

約数の個数: 12

約数和(自身を含む): 26618088

約数和(自身を除く): 5664013

約数列:

[1, 5, 25, 41, 205, 1025, 20443, 102215, 511075, 838163, 4190815, 20954075]

約数ペア:

[(1, 20954075), (5, 4190815), (25, 838163), (41, 511075), (205, 102215), (1025, 20443)]