21098728

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16381}}^1$

素因数の和:16417

約数の個数: 32

約数和(自身を含む): 47180160

約数和(自身を除く): 26081432

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 16381, 32762, 65524, 114667, 131048, 229334, 376763, 458668, 753526, 917336, 1507052, 2637341, 3014104, 5274682, 10549364, 21098728]

約数ペア:

[(1, 21098728), (2, 10549364), (4, 5274682), (7, 3014104), (8, 2637341), (14, 1507052), (23, 917336), (28, 753526), (46, 458668), (56, 376763), (92, 229334), (161, 131048), (184, 114667), (322, 65524), (644, 32762), (1288, 16381)]