18739922957

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1\times {\mathrm{2857}}^1$

素因数の和:3329

約数の個数: 32

約数和(自身を含む): 22599143424

約数和(自身を除く): 3859220467

約数列:

[1, 7, 23, 131, 161, 311, 917, 2177, 2857, 3013, 7153, 19999, 21091, 40741, 50071, 65711, 285187, 374267, 459977, 888527, 937043, 2619869, 6219689, 6559301, 8608141, 20436121, 60256987, 116397037, 143052847, 814779259, 2677131851, 18739922957]

約数ペア:

[(1, 18739922957), (7, 2677131851), (23, 814779259), (131, 143052847), (161, 116397037), (311, 60256987), (917, 20436121), (2177, 8608141), (2857, 6559301), (3013, 6219689), (7153, 2619869), (19999, 937043), (21091, 888527), (40741, 459977), (50071, 374267), (65711, 285187)]