51840663

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 81890304

約数和(自身を除く): 30049641

約数列:

[1, 3, 7, 21, 37, 111, 137, 259, 411, 487, 777, 959, 1461, 2877, 3409, 5069, 10227, 15207, 18019, 35483, 54057, 66719, 106449, 126133, 200157, 378399, 467033, 1401099, 2468603, 7405809, 17280221, 51840663]

約数ペア:

[(1, 51840663), (3, 17280221), (7, 7405809), (21, 2468603), (37, 1401099), (111, 467033), (137, 378399), (259, 200157), (411, 126133), (487, 106449), (777, 66719), (959, 54057), (1461, 35483), (2877, 18019), (3409, 15207), (5069, 10227)]