21445218

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 48185280

約数和(自身を除く): 26740062

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 103, 129, 206, 258, 269, 309, 387, 538, 618, 774, 807, 927, 1614, 1854, 2421, 4429, 4842, 8858, 11567, 13287, 23134, 26574, 27707, 34701, 39861, 55414, 69402, 79722, 83121, 104103, 166242, 208206, 249363, 498726, 1191401, 2382802, 3574203, 7148406, 10722609, 21445218]

約数ペア:

[(1, 21445218), (2, 10722609), (3, 7148406), (6, 3574203), (9, 2382802), (18, 1191401), (43, 498726), (86, 249363), (103, 208206), (129, 166242), (206, 104103), (258, 83121), (269, 79722), (309, 69402), (387, 55414), (538, 39861), (618, 34701), (774, 27707), (807, 26574), (927, 23134), (1614, 13287), (1854, 11567), (2421, 8858), (4429, 4842)]