28155477

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{20011}}^1$

素因数の和:20088

約数の個数: 16

約数和(自身を含む): 43546112

約数和(自身を除く): 15390635

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 20011, 60033, 140077, 420231, 1340737, 4022211, 9385159, 28155477]

約数ペア:

[(1, 28155477), (3, 9385159), (7, 4022211), (21, 1340737), (67, 420231), (201, 140077), (469, 60033), (1407, 20011)]