21908718

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 80

約数和(自身を含む): 53909856

約数和(自身を除く): 32001138

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 101, 103, 117, 162, 202, 206, 234, 303, 309, 351, 606, 618, 702, 909, 927, 1053, 1313, 1339, 1818, 1854, 2106, 2626, 2678, 2727, 2781, 3939, 4017, 5454, 5562, 7878, 8034, 8181, 8343, 10403, 11817, 12051, 16362, 16686, 20806, 23634, 24102, 31209, 35451, 36153, 62418, 70902, 72306, 93627, 106353, 108459, 135239, 187254, 212706, 216918, 270478, 280881, 405717, 561762, 811434, 842643, 1217151, 1685286, 2434302, 3651453, 7302906, 10954359, 21908718]

約数ペア:

[(1, 21908718), (2, 10954359), (3, 7302906), (6, 3651453), (9, 2434302), (13, 1685286), (18, 1217151), (26, 842643), (27, 811434), (39, 561762), (54, 405717), (78, 280881), (81, 270478), (101, 216918), (103, 212706), (117, 187254), (162, 135239), (202, 108459), (206, 106353), (234, 93627), (303, 72306), (309, 70902), (351, 62418), (606, 36153), (618, 35451), (702, 31209), (909, 24102), (927, 23634), (1053, 20806), (1313, 16686), (1339, 16362), (1818, 12051), (1854, 11817), (2106, 10403), (2626, 8343), (2678, 8181), (2727, 8034), (2781, 7878), (3939, 5562), (4017, 5454)]