16391745

素因数分解:

$3^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{647}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 28506816

約数和(自身を除く): 12115071

約数列:

[1, 3, 5, 9, 15, 45, 563, 647, 1689, 1941, 2815, 3235, 5067, 5823, 8445, 9705, 25335, 29115, 364261, 1092783, 1821305, 3278349, 5463915, 16391745]

約数ペア:

[(1, 16391745), (3, 5463915), (5, 3278349), (9, 1821305), (15, 1092783), (45, 364261), (563, 29115), (647, 25335), (1689, 9705), (1941, 8445), (2815, 5823), (3235, 5067)]