28921529

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3571}}^1$

素因数の和:3680

約数の個数: 16

約数和(自身を含む): 36005760

約数和(自身を除く): 7084231

約数列:

[1, 7, 13, 89, 91, 623, 1157, 3571, 8099, 24997, 46423, 317819, 324961, 2224733, 4131647, 28921529]

約数ペア:

[(1, 28921529), (7, 4131647), (13, 2224733), (89, 324961), (91, 317819), (623, 46423), (1157, 24997), (3571, 8099)]