21049203819

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{547}}^1\times {\mathrm{13183}}^1$

素因数の和:13879

約数の個数: 32

約数和(自身を含む): 32367247360

約数和(自身を除く): 11318043541

約数列:

[1, 3, 7, 21, 139, 417, 547, 973, 1641, 2919, 3829, 11487, 13183, 39549, 76033, 92281, 228099, 276843, 532231, 1596693, 1832437, 5497311, 7211101, 12827059, 21633303, 38481177, 50477707, 151433121, 1002343039, 3007029117, 7016401273, 21049203819]

約数ペア:

[(1, 21049203819), (3, 7016401273), (7, 3007029117), (21, 1002343039), (139, 151433121), (417, 50477707), (547, 38481177), (973, 21633303), (1641, 12827059), (2919, 7211101), (3829, 5497311), (11487, 1832437), (13183, 1596693), (39549, 532231), (76033, 276843), (92281, 228099)]