28220565

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21139}}^1$

素因数の和:21236

約数の個数: 16

約数和(自身を含む): 45662400

約数和(自身を除く): 17441835

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 21139, 63417, 105695, 317085, 1881371, 5644113, 9406855, 28220565]

約数ペア:

[(1, 28220565), (3, 9406855), (5, 5644113), (15, 1881371), (89, 317085), (267, 105695), (445, 63417), (1335, 21139)]