20997972

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{20113}}^1$

素因数の和:20152

約数の個数: 36

約数和(自身を含む): 54911220

約数和(自身を除く): 33913248

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 20113, 40226, 60339, 80452, 120678, 181017, 241356, 362034, 583277, 724068, 1166554, 1749831, 2333108, 3499662, 5249493, 6999324, 10498986, 20997972]

約数ペア:

[(1, 20997972), (2, 10498986), (3, 6999324), (4, 5249493), (6, 3499662), (9, 2333108), (12, 1749831), (18, 1166554), (29, 724068), (36, 583277), (58, 362034), (87, 241356), (116, 181017), (174, 120678), (261, 80452), (348, 60339), (522, 40226), (1044, 20113)]