21230320321

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{8443}}^1\times {\mathrm{7643}}^1$

素因数の和:16140

約数の個数: 16

約数和(自身を含む): 24785639424

約数和(自身を除く): 3555319103

約数列:

[1, 7, 47, 329, 7643, 8443, 53501, 59101, 359221, 396821, 2514547, 2777747, 64529849, 451708943, 3032902903, 21230320321]

約数ペア:

[(1, 21230320321), (7, 3032902903), (47, 451708943), (329, 64529849), (7643, 2777747), (8443, 2514547), (53501, 396821), (59101, 359221)]