18494721

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 32348160

約数和(自身を除く): 13853439

約数列:

[1, 3, 7, 9, 21, 29, 53, 63, 87, 159, 191, 203, 261, 371, 477, 573, 609, 1113, 1337, 1537, 1719, 1827, 3339, 4011, 4611, 5539, 10123, 10759, 12033, 13833, 16617, 30369, 32277, 38773, 49851, 70861, 91107, 96831, 116319, 212583, 293567, 348957, 637749, 880701, 2054969, 2642103, 6164907, 18494721]

約数ペア:

[(1, 18494721), (3, 6164907), (7, 2642103), (9, 2054969), (21, 880701), (29, 637749), (53, 348957), (63, 293567), (87, 212583), (159, 116319), (191, 96831), (203, 91107), (261, 70861), (371, 49851), (477, 38773), (573, 32277), (609, 30369), (1113, 16617), (1337, 13833), (1537, 12033), (1719, 10759), (1827, 10123), (3339, 5539), (4011, 4611)]