21306948

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1871}}^1$

素因数の和:1964

約数の個数: 48

約数和(自身を含む): 54302976

約数和(自身を除く): 32996028

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 73, 78, 146, 156, 219, 292, 438, 876, 949, 1871, 1898, 2847, 3742, 3796, 5613, 5694, 7484, 11226, 11388, 22452, 24323, 48646, 72969, 97292, 136583, 145938, 273166, 291876, 409749, 546332, 819498, 1638996, 1775579, 3551158, 5326737, 7102316, 10653474, 21306948]

約数ペア:

[(1, 21306948), (2, 10653474), (3, 7102316), (4, 5326737), (6, 3551158), (12, 1775579), (13, 1638996), (26, 819498), (39, 546332), (52, 409749), (73, 291876), (78, 273166), (146, 145938), (156, 136583), (219, 97292), (292, 72969), (438, 48646), (876, 24323), (949, 22452), (1871, 11388), (1898, 11226), (2847, 7484), (3742, 5694), (3796, 5613)]