21288386

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3889}}^1$

素因数の和:3938

約数の個数: 32

約数和(自身を含む): 40331520

約数和(自身を除く): 19043134

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 119, 161, 238, 322, 391, 782, 2737, 3889, 5474, 7778, 27223, 54446, 66113, 89447, 132226, 178894, 462791, 626129, 925582, 1252258, 1520599, 3041198, 10644193, 21288386]

約数ペア:

[(1, 21288386), (2, 10644193), (7, 3041198), (14, 1520599), (17, 1252258), (23, 925582), (34, 626129), (46, 462791), (119, 178894), (161, 132226), (238, 89447), (322, 66113), (391, 54446), (782, 27223), (2737, 7778), (3889, 5474)]