28049685

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21011}}^1$

素因数の和:21108

約数の個数: 16

約数和(自身を含む): 45385920

約数和(自身を除く): 17336235

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 21011, 63033, 105055, 315165, 1869979, 5609937, 9349895, 28049685]

約数ペア:

[(1, 28049685), (3, 9349895), (5, 5609937), (15, 1869979), (89, 315165), (267, 105055), (445, 63033), (1335, 21011)]