21014416

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19603}}^1$

素因数の和:19678

約数の個数: 20

約数和(自身を含む): 41325232

約数和(自身を除く): 20310816

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19603, 39206, 78412, 156824, 313648, 1313401, 2626802, 5253604, 10507208, 21014416]

約数ペア:

[(1, 21014416), (2, 10507208), (4, 5253604), (8, 2626802), (16, 1313401), (67, 313648), (134, 156824), (268, 78412), (536, 39206), (1072, 19603)]