21086024

素因数分解:

$2^3\times {\mathrm{331}}^1\times {\mathrm{7963}}^1$

素因数の和:8300

約数の個数: 16

約数和(自身を含む): 39660720

約数和(自身を除く): 18574696

約数列:

[1, 2, 4, 8, 331, 662, 1324, 2648, 7963, 15926, 31852, 63704, 2635753, 5271506, 10543012, 21086024]

約数ペア:

[(1, 21086024), (2, 10543012), (4, 5271506), (8, 2635753), (331, 63704), (662, 31852), (1324, 15926), (2648, 7963)]