21954475

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{21419}}^1$

素因数の和:21470

約数の個数: 12

約数和(自身を含む): 27888840

約数和(自身を除く): 5934365

約数列:

[1, 5, 25, 41, 205, 1025, 21419, 107095, 535475, 878179, 4390895, 21954475]

約数ペア:

[(1, 21954475), (5, 4390895), (25, 878179), (41, 535475), (205, 107095), (1025, 21419)]