21123896

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4483}}^1$

素因数の和:4539

約数の個数: 32

約数和(自身を含む): 43046400

約数和(自身を除く): 21922504

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4483, 4712, 8966, 17932, 35864, 85177, 138973, 170354, 277946, 340708, 555892, 681416, 1111784, 2640487, 5280974, 10561948, 21123896]

約数ペア:

[(1, 21123896), (2, 10561948), (4, 5280974), (8, 2640487), (19, 1111784), (31, 681416), (38, 555892), (62, 340708), (76, 277946), (124, 170354), (152, 138973), (248, 85177), (589, 35864), (1178, 17932), (2356, 8966), (4483, 4712)]