20326306

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 72

約数和(自身を含む): 42057792

約数和(自身を除く): 21731486

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 71, 77, 91, 121, 142, 143, 154, 169, 182, 242, 286, 338, 497, 781, 847, 923, 994, 1001, 1183, 1562, 1573, 1694, 1846, 1859, 2002, 2366, 3146, 3718, 5467, 6461, 8591, 10153, 10934, 11011, 11999, 12922, 13013, 17182, 20306, 20449, 22022, 23998, 26026, 40898, 60137, 71071, 83993, 111683, 120274, 131989, 142142, 143143, 167986, 223366, 263978, 286286, 781781, 923923, 1451879, 1563562, 1847846, 2903758, 10163153, 20326306]

約数ペア:

[(1, 20326306), (2, 10163153), (7, 2903758), (11, 1847846), (13, 1563562), (14, 1451879), (22, 923923), (26, 781781), (71, 286286), (77, 263978), (91, 223366), (121, 167986), (142, 143143), (143, 142142), (154, 131989), (169, 120274), (182, 111683), (242, 83993), (286, 71071), (338, 60137), (497, 40898), (781, 26026), (847, 23998), (923, 22022), (994, 20449), (1001, 20306), (1183, 17182), (1562, 13013), (1573, 12922), (1694, 11999), (1846, 11011), (1859, 10934), (2002, 10153), (2366, 8591), (3146, 6461), (3718, 5467)]