20719788

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{293}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 49787136

約数和(自身を除く): 29067348

約数列:

[1, 2, 3, 4, 6, 12, 71, 83, 142, 166, 213, 249, 284, 293, 332, 426, 498, 586, 852, 879, 996, 1172, 1758, 3516, 5893, 11786, 17679, 20803, 23572, 24319, 35358, 41606, 48638, 62409, 70716, 72957, 83212, 97276, 124818, 145914, 249636, 291828, 1726649, 3453298, 5179947, 6906596, 10359894, 20719788]

約数ペア:

[(1, 20719788), (2, 10359894), (3, 6906596), (4, 5179947), (6, 3453298), (12, 1726649), (71, 291828), (83, 249636), (142, 145914), (166, 124818), (213, 97276), (249, 83212), (284, 72957), (293, 70716), (332, 62409), (426, 48638), (498, 41606), (586, 35358), (852, 24319), (879, 23572), (996, 20803), (1172, 17679), (1758, 11786), (3516, 5893)]