21621927

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{1723}}^1$

素因数の和:1862

約数の個数: 16

約数和(自身を含む): 29790720

約数和(自身を除く): 8168793

約数列:

[1, 3, 47, 89, 141, 267, 1723, 4183, 5169, 12549, 80981, 153347, 242943, 460041, 7207309, 21621927]

約数ペア:

[(1, 21621927), (3, 7207309), (47, 460041), (89, 242943), (141, 153347), (267, 80981), (1723, 12549), (4183, 5169)]