21571662

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 28989618

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 239, 294, 307, 478, 614, 717, 921, 1434, 1673, 1842, 2149, 3346, 4298, 5019, 6447, 10038, 11711, 12894, 15043, 23422, 30086, 35133, 45129, 70266, 73373, 90258, 146746, 220119, 440238, 513611, 1027222, 1540833, 3081666, 3595277, 7190554, 10785831, 21571662]

約数ペア:

[(1, 21571662), (2, 10785831), (3, 7190554), (6, 3595277), (7, 3081666), (14, 1540833), (21, 1027222), (42, 513611), (49, 440238), (98, 220119), (147, 146746), (239, 90258), (294, 73373), (307, 70266), (478, 45129), (614, 35133), (717, 30086), (921, 23422), (1434, 15043), (1673, 12894), (1842, 11711), (2149, 10038), (3346, 6447), (4298, 5019)]