20455401

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{617}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 28062144

約数和(自身を除く): 7606743

約数列:

[1, 3, 43, 129, 257, 617, 771, 1851, 11051, 26531, 33153, 79593, 158569, 475707, 6818467, 20455401]

約数ペア:

[(1, 20455401), (3, 6818467), (43, 475707), (129, 158569), (257, 79593), (617, 33153), (771, 26531), (1851, 11051)]