20872978

素因数分解:

$2^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{4153}}^1$

素因数の和:4521

約数の個数: 16

約数和(自身を含む): 35890560

約数和(自身を除く): 15017582

約数列:

[1, 2, 7, 14, 359, 718, 2513, 4153, 5026, 8306, 29071, 58142, 1490927, 2981854, 10436489, 20872978]

約数ペア:

[(1, 20872978), (2, 10436489), (7, 2981854), (14, 1490927), (359, 58142), (718, 29071), (2513, 8306), (4153, 5026)]