12991888

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8923}}^1$

素因数の和:8951

約数の個数: 40

約数和(自身を含む): 30984128

約数和(自身を除く): 17992240

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 8923, 17846, 35692, 62461, 71384, 115999, 124922, 142768, 231998, 249844, 463996, 499688, 811993, 927992, 999376, 1623986, 1855984, 3247972, 6495944, 12991888]

約数ペア:

[(1, 12991888), (2, 6495944), (4, 3247972), (7, 1855984), (8, 1623986), (13, 999376), (14, 927992), (16, 811993), (26, 499688), (28, 463996), (52, 249844), (56, 231998), (91, 142768), (104, 124922), (112, 115999), (182, 71384), (208, 62461), (364, 35692), (728, 17846), (1456, 8923)]