21131002

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{5197}}^1$

素因数の和:5325

約数の個数: 16

約数和(自身を含む): 33683040

約数和(自身を除く): 12552038

約数列:

[1, 2, 19, 38, 107, 214, 2033, 4066, 5197, 10394, 98743, 197486, 556079, 1112158, 10565501, 21131002]

約数ペア:

[(1, 21131002), (2, 10565501), (19, 1112158), (38, 556079), (107, 197486), (214, 98743), (2033, 10394), (4066, 5197)]