21693896

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20389}}^1$

素因数の和:20421

約数の個数: 32

約数和(自身を含む): 48936000

約数和(自身を除く): 27242104

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20389, 40778, 81556, 142723, 163112, 285446, 387391, 570892, 774782, 1141784, 1549564, 2711737, 3099128, 5423474, 10846948, 21693896]

約数ペア:

[(1, 21693896), (2, 10846948), (4, 5423474), (7, 3099128), (8, 2711737), (14, 1549564), (19, 1141784), (28, 774782), (38, 570892), (56, 387391), (76, 285446), (133, 163112), (152, 142723), (266, 81556), (532, 40778), (1064, 20389)]