20876868

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{19997}}^1$

素因数の和:20036

約数の個数: 36

約数和(自身を含む): 54594540

約数和(自身を除く): 33717672

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 19997, 39994, 59991, 79988, 119982, 179973, 239964, 359946, 579913, 719892, 1159826, 1739739, 2319652, 3479478, 5219217, 6958956, 10438434, 20876868]

約数ペア:

[(1, 20876868), (2, 10438434), (3, 6958956), (4, 5219217), (6, 3479478), (9, 2319652), (12, 1739739), (18, 1159826), (29, 719892), (36, 579913), (58, 359946), (87, 239964), (116, 179973), (174, 119982), (261, 79988), (348, 59991), (522, 39994), (1044, 19997)]