18123886

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 30917376

約数和(自身を除く): 12793490

約数列:

[1, 2, 11, 22, 41, 71, 82, 142, 283, 451, 566, 781, 902, 1562, 2911, 3113, 5822, 6226, 11603, 20093, 23206, 32021, 40186, 64042, 127633, 221023, 255266, 442046, 823813, 1647626, 9061943, 18123886]

約数ペア:

[(1, 18123886), (2, 9061943), (11, 1647626), (22, 823813), (41, 442046), (71, 255266), (82, 221023), (142, 127633), (283, 64042), (451, 40186), (566, 32021), (781, 23206), (902, 20093), (1562, 11603), (2911, 6226), (3113, 5822)]