21031956

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{307}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 58522464

約数和(自身を除く): 37490508

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 173, 198, 307, 346, 396, 519, 614, 692, 921, 1038, 1228, 1557, 1842, 1903, 2076, 2763, 3114, 3377, 3684, 3806, 5526, 5709, 6228, 6754, 7612, 10131, 11052, 11418, 13508, 17127, 20262, 22836, 30393, 34254, 40524, 53111, 60786, 68508, 106222, 121572, 159333, 212444, 318666, 477999, 584221, 637332, 955998, 1168442, 1752663, 1911996, 2336884, 3505326, 5257989, 7010652, 10515978, 21031956]

約数ペア:

[(1, 21031956), (2, 10515978), (3, 7010652), (4, 5257989), (6, 3505326), (9, 2336884), (11, 1911996), (12, 1752663), (18, 1168442), (22, 955998), (33, 637332), (36, 584221), (44, 477999), (66, 318666), (99, 212444), (132, 159333), (173, 121572), (198, 106222), (307, 68508), (346, 60786), (396, 53111), (519, 40524), (614, 34254), (692, 30393), (921, 22836), (1038, 20262), (1228, 17127), (1557, 13508), (1842, 11418), (1903, 11052), (2076, 10131), (2763, 7612), (3114, 6754), (3377, 6228), (3684, 5709), (3806, 5526)]