21795004

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{919}}^1$

素因数の和:959

約数の個数: 54

約数和(自身を含む): 48821640

約数和(自身を除く): 27026636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 484, 539, 847, 919, 1078, 1694, 1838, 2156, 3388, 3676, 5929, 6433, 10109, 11858, 12866, 20218, 23716, 25732, 40436, 45031, 70763, 90062, 111199, 141526, 180124, 222398, 283052, 444796, 495341, 778393, 990682, 1556786, 1981364, 3113572, 5448751, 10897502, 21795004]

約数ペア:

[(1, 21795004), (2, 10897502), (4, 5448751), (7, 3113572), (11, 1981364), (14, 1556786), (22, 990682), (28, 778393), (44, 495341), (49, 444796), (77, 283052), (98, 222398), (121, 180124), (154, 141526), (196, 111199), (242, 90062), (308, 70763), (484, 45031), (539, 40436), (847, 25732), (919, 23716), (1078, 20218), (1694, 12866), (1838, 11858), (2156, 10109), (3388, 6433), (3676, 5929)]