20921472719

素因数分解:

$7^2\times {\mathrm{8219}}^1\times {\mathrm{51949}}^1$

素因数の和:60182

約数の個数: 12

約数和(自身を含む): 24340653000

約数和(自身を除く): 3419180281

約数列:

[1, 7, 49, 8219, 51949, 57533, 363643, 402731, 2545501, 426968831, 2988781817, 20921472719]

約数ペア:

[(1, 20921472719), (7, 2988781817), (49, 426968831), (8219, 2545501), (51949, 402731), (57533, 363643)]