19928349

素因数分解:

$3^4\times 7^2\times {\mathrm{5021}}^1$

素因数の和:5047

約数の個数: 30

約数和(自身を含む): 34636734

約数和(自身を除く): 14708385

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5021, 15063, 35147, 45189, 105441, 135567, 246029, 316323, 406701, 738087, 948969, 2214261, 2846907, 6642783, 19928349]

約数ペア:

[(1, 19928349), (3, 6642783), (7, 2846907), (9, 2214261), (21, 948969), (27, 738087), (49, 406701), (63, 316323), (81, 246029), (147, 135567), (189, 105441), (441, 45189), (567, 35147), (1323, 15063), (3969, 5021)]