421569309

素因数分解:

$3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{79979}}^1$

素因数の和:80240

約数の個数: 16

約数和(自身を含む): 644958720

約数和(自身を除く): 223389411

約数列:

[1, 3, 7, 21, 251, 753, 1757, 5271, 79979, 239937, 559853, 1679559, 20074729, 60224187, 140523103, 421569309]

約数ペア:

[(1, 421569309), (3, 140523103), (7, 60224187), (21, 20074729), (251, 1679559), (753, 559853), (1757, 239937), (5271, 79979)]