20328555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1709}}^1$

素因数の和:1791

約数の個数: 32

約数和(自身を含む): 35622720

約数和(自身を除く): 15294165

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1709, 2379, 3965, 5127, 8545, 11895, 22217, 25635, 66651, 104249, 111085, 312747, 333255, 521245, 1355237, 1563735, 4065711, 6776185, 20328555]

約数ペア:

[(1, 20328555), (3, 6776185), (5, 4065711), (13, 1563735), (15, 1355237), (39, 521245), (61, 333255), (65, 312747), (183, 111085), (195, 104249), (305, 66651), (793, 25635), (915, 22217), (1709, 11895), (2379, 8545), (3965, 5127)]