21947095

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{709}}^1$

素因数の和:906

約数の個数: 16

約数和(自身を含む): 27195840

約数和(自身を除く): 5248745

約数列:

[1, 5, 41, 151, 205, 709, 755, 3545, 6191, 29069, 30955, 107059, 145345, 535295, 4389419, 21947095]

約数ペア:

[(1, 21947095), (5, 4389419), (41, 535295), (151, 145345), (205, 107059), (709, 30955), (755, 29069), (3545, 6191)]