20766293457

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1\times {\mathrm{4339}}^1$

素因数の和:4782

約数の個数: 64

約数和(自身を含む): 34904432640

約数和(自身を除く): 14138139183

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 373, 611, 987, 1119, 1833, 2611, 4277, 4339, 4849, 7833, 12831, 13017, 14547, 17531, 30373, 33943, 52593, 56407, 91119, 101829, 122717, 169221, 203933, 227903, 368151, 394849, 611799, 683709, 1184547, 1427531, 1595321, 1618447, 2651129, 4282593, 4785963, 4855341, 7953387, 11329129, 18557903, 21039811, 33987387, 55673709, 63119433, 76067009, 147278677, 228201027, 441836031, 532469063, 988871117, 1597407189, 2966613351, 6922097819, 20766293457]

約数ペア:

[(1, 20766293457), (3, 6922097819), (7, 2966613351), (13, 1597407189), (21, 988871117), (39, 532469063), (47, 441836031), (91, 228201027), (141, 147278677), (273, 76067009), (329, 63119433), (373, 55673709), (611, 33987387), (987, 21039811), (1119, 18557903), (1833, 11329129), (2611, 7953387), (4277, 4855341), (4339, 4785963), (4849, 4282593), (7833, 2651129), (12831, 1618447), (13017, 1595321), (14547, 1427531), (17531, 1184547), (30373, 683709), (33943, 611799), (52593, 394849), (56407, 368151), (91119, 227903), (101829, 203933), (122717, 169221)]