19872135

素因数分解:

$3^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:509

約数の個数: 40

約数和(自身を含む): 35980560

約数和(自身を除く): 16108425

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 139, 353, 405, 417, 695, 1059, 1251, 1765, 2085, 3177, 3753, 5295, 6255, 9531, 11259, 15885, 18765, 28593, 47655, 49067, 56295, 142965, 147201, 245335, 441603, 736005, 1324809, 2208015, 3974427, 6624045, 19872135]

約数ペア:

[(1, 19872135), (3, 6624045), (5, 3974427), (9, 2208015), (15, 1324809), (27, 736005), (45, 441603), (81, 245335), (135, 147201), (139, 142965), (353, 56295), (405, 49067), (417, 47655), (695, 28593), (1059, 18765), (1251, 15885), (1765, 11259), (2085, 9531), (3177, 6255), (3753, 5295)]