21003897

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{1259}}^1$

素因数の和:1412

約数の個数: 16

約数和(自身を含む): 28788480

約数和(自身を除く): 7784583

約数列:

[1, 3, 67, 83, 201, 249, 1259, 3777, 5561, 16683, 84353, 104497, 253059, 313491, 7001299, 21003897]

約数ペア:

[(1, 21003897), (3, 7001299), (67, 313491), (83, 253059), (201, 104497), (249, 84353), (1259, 16683), (3777, 5561)]