18970413

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2003}}^1$

素因数の和:2065

約数の個数: 32

約数和(自身を含む): 32320512

約数和(自身を除く): 13350099

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 123, 231, 287, 451, 861, 1353, 2003, 3157, 6009, 9471, 14021, 22033, 42063, 66099, 82123, 154231, 246369, 462693, 574861, 903353, 1724583, 2710059, 6323471, 18970413]

約数ペア:

[(1, 18970413), (3, 6323471), (7, 2710059), (11, 1724583), (21, 903353), (33, 574861), (41, 462693), (77, 246369), (123, 154231), (231, 82123), (287, 66099), (451, 42063), (861, 22033), (1353, 14021), (2003, 9471), (3157, 6009)]