21428072

素因数分解:

$2^3\times {\mathrm{1409}}^1\times {\mathrm{1901}}^1$

素因数の和:3316

約数の個数: 16

約数和(自身を含む): 40227300

約数和(自身を除く): 18799228

約数列:

[1, 2, 4, 8, 1409, 1901, 2818, 3802, 5636, 7604, 11272, 15208, 2678509, 5357018, 10714036, 21428072]

約数ペア:

[(1, 21428072), (2, 10714036), (4, 5357018), (8, 2678509), (1409, 15208), (1901, 11272), (2818, 7604), (3802, 5636)]