21755877

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 35417088

約数和(自身を除く): 13661211

約数列:

[1, 3, 11, 13, 33, 39, 47, 83, 141, 143, 169, 249, 429, 507, 517, 611, 913, 1079, 1551, 1833, 1859, 2739, 3237, 3901, 5577, 6721, 7943, 11703, 11869, 14027, 20163, 23829, 35607, 42081, 42911, 50713, 87373, 128733, 152139, 154297, 262119, 462891, 557843, 659269, 1673529, 1977807, 7251959, 21755877]

約数ペア:

[(1, 21755877), (3, 7251959), (11, 1977807), (13, 1673529), (33, 659269), (39, 557843), (47, 462891), (83, 262119), (141, 154297), (143, 152139), (169, 128733), (249, 87373), (429, 50713), (507, 42911), (517, 42081), (611, 35607), (913, 23829), (1079, 20163), (1551, 14027), (1833, 11869), (1859, 11703), (2739, 7943), (3237, 6721), (3901, 5577)]