28109515

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{11987}}^1$

素因数の和:12066

約数の個数: 16

約数和(自身を含む): 39128832

約数和(自身を除く): 11019317

約数列:

[1, 5, 7, 35, 67, 335, 469, 2345, 11987, 59935, 83909, 419545, 803129, 4015645, 5621903, 28109515]

約数ペア:

[(1, 28109515), (5, 5621903), (7, 4015645), (35, 803129), (67, 419545), (335, 83909), (469, 59935), (2345, 11987)]