21366813

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1\times {\mathrm{839}}^1$

素因数の和:1508

約数の個数: 16

約数和(自身を含む): 30764160

約数和(自身を除く): 9397347

約数列:

[1, 3, 13, 39, 653, 839, 1959, 2517, 8489, 10907, 25467, 32721, 547867, 1643601, 7122271, 21366813]

約数ペア:

[(1, 21366813), (3, 7122271), (13, 1643601), (39, 547867), (653, 32721), (839, 25467), (1959, 10907), (2517, 8489)]