20898813

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1907}}^1$

素因数の和:2204

約数の個数: 16

約数和(自身を含む): 30131136

約数和(自身を除く): 9232323

約数列:

[1, 3, 13, 39, 281, 843, 1907, 3653, 5721, 10959, 24791, 74373, 535867, 1607601, 6966271, 20898813]

約数ペア:

[(1, 20898813), (3, 6966271), (13, 1607601), (39, 535867), (281, 74373), (843, 24791), (1907, 10959), (3653, 5721)]