18209895

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 32686080

約数和(自身を除く): 14476185

約数列:

[1, 3, 5, 11, 15, 33, 55, 79, 121, 127, 165, 237, 363, 381, 395, 605, 635, 869, 1185, 1397, 1815, 1905, 2607, 4191, 4345, 6985, 9559, 10033, 13035, 15367, 20955, 28677, 30099, 46101, 47795, 50165, 76835, 110363, 143385, 150495, 230505, 331089, 551815, 1213993, 1655445, 3641979, 6069965, 18209895]

約数ペア:

[(1, 18209895), (3, 6069965), (5, 3641979), (11, 1655445), (15, 1213993), (33, 551815), (55, 331089), (79, 230505), (121, 150495), (127, 143385), (165, 110363), (237, 76835), (363, 50165), (381, 47795), (395, 46101), (605, 30099), (635, 28677), (869, 20955), (1185, 15367), (1397, 13035), (1815, 10033), (1905, 9559), (2607, 6985), (4191, 4345)]