26884221

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 47738880

約数和(自身を除く): 20854659

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 71, 73, 91, 133, 213, 219, 247, 273, 399, 497, 511, 741, 923, 949, 1349, 1387, 1491, 1533, 1729, 2769, 2847, 4047, 4161, 5183, 5187, 6461, 6643, 9443, 9709, 15549, 17537, 18031, 19383, 19929, 28329, 29127, 36281, 52611, 54093, 67379, 98477, 108843, 122759, 126217, 202137, 295431, 368277, 378651, 471653, 689339, 1280201, 1414959, 2068017, 3840603, 8961407, 26884221]

約数ペア:

[(1, 26884221), (3, 8961407), (7, 3840603), (13, 2068017), (19, 1414959), (21, 1280201), (39, 689339), (57, 471653), (71, 378651), (73, 368277), (91, 295431), (133, 202137), (213, 126217), (219, 122759), (247, 108843), (273, 98477), (399, 67379), (497, 54093), (511, 52611), (741, 36281), (923, 29127), (949, 28329), (1349, 19929), (1387, 19383), (1491, 18031), (1533, 17537), (1729, 15549), (2769, 9709), (2847, 9443), (4047, 6643), (4161, 6461), (5183, 5187)]