21207832

素因数分解:

$2^3\times {\mathrm{331}}^1\times {\mathrm{8009}}^1$

素因数の和:8346

約数の個数: 16

約数和(自身を含む): 39889800

約数和(自身を除く): 18681968

約数列:

[1, 2, 4, 8, 331, 662, 1324, 2648, 8009, 16018, 32036, 64072, 2650979, 5301958, 10603916, 21207832]

約数ペア:

[(1, 21207832), (2, 10603916), (4, 5301958), (8, 2650979), (331, 64072), (662, 32036), (1324, 16018), (2648, 8009)]