21289554

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{919}}^1$

素因数の和:957

約数の個数: 80

約数和(自身を含む): 56105280

約数和(自身を除く): 34815726

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 27, 33, 39, 54, 66, 78, 81, 99, 117, 143, 162, 198, 234, 286, 297, 351, 429, 594, 702, 858, 891, 919, 1053, 1287, 1782, 1838, 2106, 2574, 2757, 3861, 5514, 7722, 8271, 10109, 11583, 11947, 16542, 20218, 23166, 23894, 24813, 30327, 35841, 49626, 60654, 71682, 74439, 90981, 107523, 131417, 148878, 181962, 215046, 262834, 272943, 322569, 394251, 545886, 645138, 788502, 818829, 967707, 1182753, 1637658, 1935414, 2365506, 3548259, 7096518, 10644777, 21289554]

約数ペア:

[(1, 21289554), (2, 10644777), (3, 7096518), (6, 3548259), (9, 2365506), (11, 1935414), (13, 1637658), (18, 1182753), (22, 967707), (26, 818829), (27, 788502), (33, 645138), (39, 545886), (54, 394251), (66, 322569), (78, 272943), (81, 262834), (99, 215046), (117, 181962), (143, 148878), (162, 131417), (198, 107523), (234, 90981), (286, 74439), (297, 71682), (351, 60654), (429, 49626), (594, 35841), (702, 30327), (858, 24813), (891, 23894), (919, 23166), (1053, 20218), (1287, 16542), (1782, 11947), (1838, 11583), (2106, 10109), (2574, 8271), (2757, 7722), (3861, 5514)]