21315528304

素因数分解:

$2^4\times 7^1\times {\mathrm{283}}^1\times {\mathrm{672499}}^1$

素因数の和:672797

約数の個数: 40

約数和(自身を含む): 47365520000

約数和(自身を除く): 26049991696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 283, 566, 1132, 1981, 2264, 3962, 4528, 7924, 15848, 31696, 672499, 1344998, 2689996, 4707493, 5379992, 9414986, 10759984, 18829972, 37659944, 75319888, 190317217, 380634434, 761268868, 1332220519, 1522537736, 2664441038, 3045075472, 5328882076, 10657764152, 21315528304]

約数ペア:

[(1, 21315528304), (2, 10657764152), (4, 5328882076), (7, 3045075472), (8, 2664441038), (14, 1522537736), (16, 1332220519), (28, 761268868), (56, 380634434), (112, 190317217), (283, 75319888), (566, 37659944), (1132, 18829972), (1981, 10759984), (2264, 9414986), (3962, 5379992), (4528, 4707493), (7924, 2689996), (15848, 1344998), (31696, 672499)]