21376808

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{50417}}^1$

素因数の和:50476

約数の個数: 16

約数和(自身を含む): 40838580

約数和(自身を除く): 19461772

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 50417, 100834, 201668, 403336, 2672101, 5344202, 10688404, 21376808]

約数ペア:

[(1, 21376808), (2, 10688404), (4, 5344202), (8, 2672101), (53, 403336), (106, 201668), (212, 100834), (424, 50417)]