291216783

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 490516992

約数和(自身を除く): 199300209

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 73, 143, 187, 219, 221, 429, 547, 561, 663, 803, 949, 1241, 1641, 2409, 2431, 2847, 3723, 6017, 7111, 7293, 9299, 10439, 13651, 16133, 18051, 21333, 27897, 31317, 39931, 40953, 48399, 78221, 102289, 119793, 120887, 177463, 234663, 306867, 362661, 439241, 519103, 532389, 678827, 1317723, 1329757, 1557309, 2036481, 3989271, 5710133, 7467097, 8824751, 17130399, 22401291, 26474253, 97072261, 291216783]

約数ペア:

[(1, 291216783), (3, 97072261), (11, 26474253), (13, 22401291), (17, 17130399), (33, 8824751), (39, 7467097), (51, 5710133), (73, 3989271), (143, 2036481), (187, 1557309), (219, 1329757), (221, 1317723), (429, 678827), (547, 532389), (561, 519103), (663, 439241), (803, 362661), (949, 306867), (1241, 234663), (1641, 177463), (2409, 120887), (2431, 119793), (2847, 102289), (3723, 78221), (6017, 48399), (7111, 40953), (7293, 39931), (9299, 31317), (10439, 27897), (13651, 21333), (16133, 18051)]