21894555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4519}}^1$

素因数の和:4563

約数の個数: 32

約数和(自身を含む): 39052800

約数和(自身を除く): 17158245

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4519, 4845, 13557, 22595, 67785, 76823, 85861, 230469, 257583, 384115, 429305, 1152345, 1287915, 1459637, 4378911, 7298185, 21894555]

約数ペア:

[(1, 21894555), (3, 7298185), (5, 4378911), (15, 1459637), (17, 1287915), (19, 1152345), (51, 429305), (57, 384115), (85, 257583), (95, 230469), (255, 85861), (285, 76823), (323, 67785), (969, 22595), (1615, 13557), (4519, 4845)]