28515319

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{397}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 33826816

約数和(自身を除く): 5311497

約数列:

[1, 7, 31, 217, 331, 397, 2317, 2779, 10261, 12307, 71827, 86149, 131407, 919849, 4073617, 28515319]

約数ペア:

[(1, 28515319), (7, 4073617), (31, 919849), (217, 131407), (331, 86149), (397, 71827), (2317, 12307), (2779, 10261)]