20849764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21486236

約数列:

[1, 2, 4, 13, 19, 26, 38, 47, 52, 76, 94, 188, 247, 449, 494, 611, 893, 898, 988, 1222, 1786, 1796, 2444, 3572, 5837, 8531, 11609, 11674, 17062, 21103, 23218, 23348, 34124, 42206, 46436, 84412, 110903, 221806, 274339, 400957, 443612, 548678, 801914, 1097356, 1603828, 5212441, 10424882, 20849764]

約数ペア:

[(1, 20849764), (2, 10424882), (4, 5212441), (13, 1603828), (19, 1097356), (26, 801914), (38, 548678), (47, 443612), (52, 400957), (76, 274339), (94, 221806), (188, 110903), (247, 84412), (449, 46436), (494, 42206), (611, 34124), (893, 23348), (898, 23218), (988, 21103), (1222, 17062), (1786, 11674), (1796, 11609), (2444, 8531), (3572, 5837)]