20511999145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1447}}^1\times {\mathrm{15161}}^1$

素因数の和:16641

約数の個数: 32

約数和(自身を含む): 28453130496

約数和(自身を除く): 7941131351

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 1447, 7235, 15161, 15917, 24599, 75805, 79585, 122995, 166771, 257737, 270589, 833855, 1288685, 1352945, 2835107, 14175535, 21937967, 109689835, 241317637, 372945439, 1206588185, 1864727195, 4102399829, 20511999145]

約数ペア:

[(1, 20511999145), (5, 4102399829), (11, 1864727195), (17, 1206588185), (55, 372945439), (85, 241317637), (187, 109689835), (935, 21937967), (1447, 14175535), (7235, 2835107), (15161, 1352945), (15917, 1288685), (24599, 833855), (75805, 270589), (79585, 257737), (122995, 166771)]