81779439

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2113}}^1$

素因数の和:2239

約数の個数: 32

約数和(自身を含む): 132590080

約数和(自身を除く): 50810641

約数列:

[1, 3, 7, 19, 21, 57, 97, 133, 291, 399, 679, 1843, 2037, 2113, 5529, 6339, 12901, 14791, 38703, 40147, 44373, 120441, 204961, 281029, 614883, 843087, 1434727, 3894259, 4304181, 11682777, 27259813, 81779439]

約数ペア:

[(1, 81779439), (3, 27259813), (7, 11682777), (19, 4304181), (21, 3894259), (57, 1434727), (97, 843087), (133, 614883), (291, 281029), (399, 204961), (679, 120441), (1843, 44373), (2037, 40147), (2113, 38703), (5529, 14791), (6339, 12901)]