17941707

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 31299840

約数和(自身を除く): 13358133

約数列:

[1, 3, 7, 9, 21, 37, 43, 63, 111, 129, 179, 259, 301, 333, 387, 537, 777, 903, 1253, 1591, 1611, 2331, 2709, 3759, 4773, 6623, 7697, 11137, 11277, 14319, 19869, 23091, 33411, 46361, 53879, 59607, 69273, 100233, 139083, 161637, 284789, 417249, 484911, 854367, 1993523, 2563101, 5980569, 17941707]

約数ペア:

[(1, 17941707), (3, 5980569), (7, 2563101), (9, 1993523), (21, 854367), (37, 484911), (43, 417249), (63, 284789), (111, 161637), (129, 139083), (179, 100233), (259, 69273), (301, 59607), (333, 53879), (387, 46361), (537, 33411), (777, 23091), (903, 19869), (1253, 14319), (1591, 11277), (1611, 11137), (2331, 7697), (2709, 6623), (3759, 4773)]