21013336

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{70991}}^1$

素因数の和:71034

約数の個数: 16

約数和(自身を含む): 40465440

約数和(自身を除く): 19452104

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 70991, 141982, 283964, 567928, 2626667, 5253334, 10506668, 21013336]

約数ペア:

[(1, 21013336), (2, 10506668), (4, 5253334), (8, 2626667), (37, 567928), (74, 283964), (148, 141982), (296, 70991)]