81091071

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 135475200

約数和(自身を除く): 54384129

約数列:

[1, 3, 9, 17, 27, 31, 41, 51, 93, 123, 139, 153, 279, 369, 417, 459, 527, 697, 837, 1107, 1251, 1271, 1581, 2091, 2363, 3753, 3813, 4309, 4743, 5699, 6273, 7089, 11439, 12927, 14229, 17097, 18819, 21267, 21607, 34317, 38781, 51291, 63801, 64821, 73253, 96883, 116343, 153873, 176669, 194463, 219759, 290649, 530007, 583389, 659277, 871947, 1590021, 1977831, 2615841, 3003373, 4770063, 9010119, 27030357, 81091071]

約数ペア:

[(1, 81091071), (3, 27030357), (9, 9010119), (17, 4770063), (27, 3003373), (31, 2615841), (41, 1977831), (51, 1590021), (93, 871947), (123, 659277), (139, 583389), (153, 530007), (279, 290649), (369, 219759), (417, 194463), (459, 176669), (527, 153873), (697, 116343), (837, 96883), (1107, 73253), (1251, 64821), (1271, 63801), (1581, 51291), (2091, 38781), (2363, 34317), (3753, 21607), (3813, 21267), (4309, 18819), (4743, 17097), (5699, 14229), (6273, 12927), (7089, 11439)]