21999872

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4523}}^1$

素因数の和:4558

約数の個数: 36

約数和(自身を含む): 46235280

約数和(自身を除く): 24235408

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4523, 4864, 9046, 18092, 36184, 72368, 85937, 144736, 171874, 289472, 343748, 578944, 687496, 1157888, 1374992, 2749984, 5499968, 10999936, 21999872]

約数ペア:

[(1, 21999872), (2, 10999936), (4, 5499968), (8, 2749984), (16, 1374992), (19, 1157888), (32, 687496), (38, 578944), (64, 343748), (76, 289472), (128, 171874), (152, 144736), (256, 85937), (304, 72368), (608, 36184), (1216, 18092), (2432, 9046), (4523, 4864)]