20685447

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{383}}^1$

素因数の和:759

約数の個数: 24

約数和(自身を含む): 31809024

約数和(自身を除く): 11123577

約数列:

[1, 3, 9, 17, 51, 153, 353, 383, 1059, 1149, 3177, 3447, 6001, 6511, 18003, 19533, 54009, 58599, 135199, 405597, 1216791, 2298383, 6895149, 20685447]

約数ペア:

[(1, 20685447), (3, 6895149), (9, 2298383), (17, 1216791), (51, 405597), (153, 135199), (353, 58599), (383, 54009), (1059, 19533), (1149, 18003), (3177, 6511), (3447, 6001)]