20119917

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 29952000

約数和(自身を除く): 9832083

約数列:

[1, 3, 19, 23, 57, 69, 103, 149, 309, 437, 447, 1311, 1957, 2369, 2831, 3427, 5871, 7107, 8493, 10281, 15347, 45011, 46041, 65113, 135033, 195339, 291593, 352981, 874779, 1058943, 6706639, 20119917]

約数ペア:

[(1, 20119917), (3, 6706639), (19, 1058943), (23, 874779), (57, 352981), (69, 291593), (103, 195339), (149, 135033), (309, 65113), (437, 46041), (447, 45011), (1311, 15347), (1957, 10281), (2369, 8493), (2831, 7107), (3427, 5871)]