18459716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 19279804

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 71, 76, 142, 209, 284, 311, 418, 622, 781, 836, 1244, 1349, 1562, 2698, 3124, 3421, 5396, 5909, 6842, 11818, 13684, 14839, 22081, 23636, 29678, 44162, 59356, 64999, 88324, 129998, 242891, 259996, 419539, 485782, 839078, 971564, 1678156, 4614929, 9229858, 18459716]

約数ペア:

[(1, 18459716), (2, 9229858), (4, 4614929), (11, 1678156), (19, 971564), (22, 839078), (38, 485782), (44, 419539), (71, 259996), (76, 242891), (142, 129998), (209, 88324), (284, 64999), (311, 59356), (418, 44162), (622, 29678), (781, 23636), (836, 22081), (1244, 14839), (1349, 13684), (1562, 11818), (2698, 6842), (3124, 5909), (3421, 5396)]