18640024

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{811}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 40120920

約数和(自身を除く): 21480896

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 169, 221, 338, 442, 676, 811, 884, 1352, 1622, 1768, 2873, 3244, 5746, 6488, 10543, 11492, 13787, 21086, 22984, 27574, 42172, 55148, 84344, 110296, 137059, 179231, 274118, 358462, 548236, 716924, 1096472, 1433848, 2330003, 4660006, 9320012, 18640024]

約数ペア:

[(1, 18640024), (2, 9320012), (4, 4660006), (8, 2330003), (13, 1433848), (17, 1096472), (26, 716924), (34, 548236), (52, 358462), (68, 274118), (104, 179231), (136, 137059), (169, 110296), (221, 84344), (338, 55148), (442, 42172), (676, 27574), (811, 22984), (884, 21086), (1352, 13787), (1622, 11492), (1768, 10543), (2873, 6488), (3244, 5746)]