21848145

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7789}}^1$

素因数の和:7825

約数の個数: 32

約数和(自身を含む): 40383360

約数和(自身を除く): 18535215

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7789, 23367, 38945, 85679, 116835, 132413, 257037, 397239, 428395, 662065, 1285185, 1456543, 1986195, 4369629, 7282715, 21848145]

約数ペア:

[(1, 21848145), (3, 7282715), (5, 4369629), (11, 1986195), (15, 1456543), (17, 1285185), (33, 662065), (51, 428395), (55, 397239), (85, 257037), (165, 132413), (187, 116835), (255, 85679), (561, 38945), (935, 23367), (2805, 7789)]