20421774

素因数分解:

$2^1\times 3^3\times {\mathrm{317}}^1\times {\mathrm{1193}}^1$

素因数の和:1521

約数の個数: 32

約数和(自身を含む): 45563040

約数和(自身を除く): 25141266

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 317, 634, 951, 1193, 1902, 2386, 2853, 3579, 5706, 7158, 8559, 10737, 17118, 21474, 32211, 64422, 378181, 756362, 1134543, 2269086, 3403629, 6807258, 10210887, 20421774]

約数ペア:

[(1, 20421774), (2, 10210887), (3, 6807258), (6, 3403629), (9, 2269086), (18, 1134543), (27, 756362), (54, 378181), (317, 64422), (634, 32211), (951, 21474), (1193, 17118), (1902, 10737), (2386, 8559), (2853, 7158), (3579, 5706)]