18919936

素因数分解:

$2^9\times 7^1\times {\mathrm{5279}}^1$

素因数の和:5304

約数の個数: 40

約数和(自身を含む): 43211520

約数和(自身を除く): 24291584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 5279, 10558, 21116, 36953, 42232, 73906, 84464, 147812, 168928, 295624, 337856, 591248, 675712, 1182496, 1351424, 2364992, 2702848, 4729984, 9459968, 18919936]

約数ペア:

[(1, 18919936), (2, 9459968), (4, 4729984), (7, 2702848), (8, 2364992), (14, 1351424), (16, 1182496), (28, 675712), (32, 591248), (56, 337856), (64, 295624), (112, 168928), (128, 147812), (224, 84464), (256, 73906), (448, 42232), (512, 36953), (896, 21116), (1792, 10558), (3584, 5279)]