217778967

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^2\times {\mathrm{929}}^1$

素因数の和:1064

約数の個数: 36

約数和(自身を含む): 365891760

約数和(自身を除く): 148112793

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 929, 1281, 2787, 3721, 3843, 6503, 8361, 11163, 19509, 26047, 33489, 56669, 58527, 78141, 170007, 234423, 396683, 510021, 1190049, 3456809, 3570147, 10370427, 24197663, 31111281, 72592989, 217778967]

約数ペア:

[(1, 217778967), (3, 72592989), (7, 31111281), (9, 24197663), (21, 10370427), (61, 3570147), (63, 3456809), (183, 1190049), (427, 510021), (549, 396683), (929, 234423), (1281, 170007), (2787, 78141), (3721, 58527), (3843, 56669), (6503, 33489), (8361, 26047), (11163, 19509)]