18853107

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1303}}^1$

素因数の和:1379

約数の個数: 32

約数和(自身を含む): 31546368

約数和(自身を除く): 12693261

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 1303, 2067, 3909, 4823, 9121, 14469, 16939, 27363, 50817, 69059, 118573, 207177, 355719, 483413, 897767, 1450239, 2693301, 6284369, 18853107]

約数ペア:

[(1, 18853107), (3, 6284369), (7, 2693301), (13, 1450239), (21, 897767), (39, 483413), (53, 355719), (91, 207177), (159, 118573), (273, 69059), (371, 50817), (689, 27363), (1113, 16939), (1303, 14469), (2067, 9121), (3909, 4823)]