20902214

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:137

約数の個数: 36

約数和(自身を含む): 35296404

約数和(自身を除く): 14394190

約数列:

[1, 2, 17, 29, 34, 43, 58, 86, 289, 493, 578, 731, 841, 986, 1247, 1462, 1682, 2494, 8381, 12427, 14297, 16762, 21199, 24854, 28594, 36163, 42398, 72326, 243049, 360383, 486098, 614771, 720766, 1229542, 10451107, 20902214]

約数ペア:

[(1, 20902214), (2, 10451107), (17, 1229542), (29, 720766), (34, 614771), (43, 486098), (58, 360383), (86, 243049), (289, 72326), (493, 42398), (578, 36163), (731, 28594), (841, 24854), (986, 21199), (1247, 16762), (1462, 14297), (1682, 12427), (2494, 8381)]