18919168

素因数分解:

$2^8\times {\mathrm{263}}^1\times {\mathrm{281}}^1$

素因数の和:560

約数の個数: 36

約数和(自身を含む): 38042928

約数和(自身を除く): 19123760

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 263, 281, 526, 562, 1052, 1124, 2104, 2248, 4208, 4496, 8416, 8992, 16832, 17984, 33664, 35968, 67328, 71936, 73903, 147806, 295612, 591224, 1182448, 2364896, 4729792, 9459584, 18919168]

約数ペア:

[(1, 18919168), (2, 9459584), (4, 4729792), (8, 2364896), (16, 1182448), (32, 591224), (64, 295612), (128, 147806), (256, 73903), (263, 71936), (281, 67328), (526, 35968), (562, 33664), (1052, 17984), (1124, 16832), (2104, 8992), (2248, 8416), (4208, 4496)]