20985966

素因数分解:

$2^1\times 3^5\times {\mathrm{29}}^1\times {\mathrm{1489}}^1$

素因数の和:1535

約数の個数: 48

約数和(自身を含む): 48812400

約数和(自身を除く): 27826434

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 81, 87, 162, 174, 243, 261, 486, 522, 783, 1489, 1566, 2349, 2978, 4467, 4698, 7047, 8934, 13401, 14094, 26802, 40203, 43181, 80406, 86362, 120609, 129543, 241218, 259086, 361827, 388629, 723654, 777258, 1165887, 2331774, 3497661, 6995322, 10492983, 20985966]

約数ペア:

[(1, 20985966), (2, 10492983), (3, 6995322), (6, 3497661), (9, 2331774), (18, 1165887), (27, 777258), (29, 723654), (54, 388629), (58, 361827), (81, 259086), (87, 241218), (162, 129543), (174, 120609), (243, 86362), (261, 80406), (486, 43181), (522, 40203), (783, 26802), (1489, 14094), (1566, 13401), (2349, 8934), (2978, 7047), (4467, 4698)]