1998555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 3549504

約数和(自身を除く): 1550949

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 277, 481, 555, 831, 1385, 1443, 2405, 3601, 4155, 7215, 10249, 10803, 18005, 30747, 51245, 54015, 133237, 153735, 399711, 666185, 1998555]

約数ペア:

[(1, 1998555), (3, 666185), (5, 399711), (13, 153735), (15, 133237), (37, 54015), (39, 51245), (65, 30747), (111, 18005), (185, 10803), (195, 10249), (277, 7215), (481, 4155), (555, 3601), (831, 2405), (1385, 1443)]