21236404

素因数分解:

$2^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1117}}^1$

素因数の和:1232

約数の個数: 36

約数和(自身を含む): 43716036

約数和(自身を除く): 22479632

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 388, 679, 1117, 1358, 2234, 2716, 4468, 4753, 7819, 9506, 15638, 19012, 31276, 54733, 108349, 109466, 216698, 218932, 433396, 758443, 1516886, 3033772, 5309101, 10618202, 21236404]

約数ペア:

[(1, 21236404), (2, 10618202), (4, 5309101), (7, 3033772), (14, 1516886), (28, 758443), (49, 433396), (97, 218932), (98, 216698), (194, 109466), (196, 108349), (388, 54733), (679, 31276), (1117, 19012), (1358, 15638), (2234, 9506), (2716, 7819), (4468, 4753)]