1278778887

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{6299}}^1$

素因数の和:6484

約数の個数: 32

約数和(自身を含む): 1939392000

約数和(自身を除く): 660613113

約数列:

[1, 3, 9, 27, 73, 103, 219, 309, 657, 927, 1971, 2781, 6299, 7519, 18897, 22557, 56691, 67671, 170073, 203013, 459827, 648797, 1379481, 1946391, 4138443, 5839173, 12415329, 17517519, 47362181, 142086543, 426259629, 1278778887]

約数ペア:

[(1, 1278778887), (3, 426259629), (9, 142086543), (27, 47362181), (73, 17517519), (103, 12415329), (219, 5839173), (309, 4138443), (657, 1946391), (927, 1379481), (1971, 648797), (2781, 459827), (6299, 203013), (7519, 170073), (18897, 67671), (22557, 56691)]