21378138

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 45795456

約数和(自身を除く): 24417318

約数列:

[1, 2, 3, 6, 41, 43, 47, 82, 86, 94, 123, 129, 141, 246, 258, 282, 1763, 1849, 1927, 2021, 3526, 3698, 3854, 4042, 5289, 5547, 5781, 6063, 10578, 11094, 11562, 12126, 75809, 82861, 86903, 151618, 165722, 173806, 227427, 248583, 260709, 454854, 497166, 521418, 3563023, 7126046, 10689069, 21378138]

約数ペア:

[(1, 21378138), (2, 10689069), (3, 7126046), (6, 3563023), (41, 521418), (43, 497166), (47, 454854), (82, 260709), (86, 248583), (94, 227427), (123, 173806), (129, 165722), (141, 151618), (246, 86903), (258, 82861), (282, 75809), (1763, 12126), (1849, 11562), (1927, 11094), (2021, 10578), (3526, 6063), (3698, 5781), (3854, 5547), (4042, 5289)]