19951855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1787}}^1$

素因数の和:1839

約数の個数: 32

約数和(自身を含む): 30896640

約数和(自身を除く): 10944785

約数列:

[1, 5, 7, 11, 29, 35, 55, 77, 145, 203, 319, 385, 1015, 1595, 1787, 2233, 8935, 11165, 12509, 19657, 51823, 62545, 98285, 137599, 259115, 362761, 570053, 687995, 1813805, 2850265, 3990371, 19951855]

約数ペア:

[(1, 19951855), (5, 3990371), (7, 2850265), (11, 1813805), (29, 687995), (35, 570053), (55, 362761), (77, 259115), (145, 137599), (203, 98285), (319, 62545), (385, 51823), (1015, 19657), (1595, 12509), (1787, 11165), (2233, 8935)]