19855275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{587}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 16892373

約数列:

[1, 3, 5, 11, 15, 25, 33, 41, 55, 75, 123, 165, 205, 275, 451, 587, 615, 825, 1025, 1353, 1761, 2255, 2935, 3075, 6457, 6765, 8805, 11275, 14675, 19371, 24067, 32285, 33825, 44025, 72201, 96855, 120335, 161425, 264737, 361005, 484275, 601675, 794211, 1323685, 1805025, 3971055, 6618425, 19855275]

約数ペア:

[(1, 19855275), (3, 6618425), (5, 3971055), (11, 1805025), (15, 1323685), (25, 794211), (33, 601675), (41, 484275), (55, 361005), (75, 264737), (123, 161425), (165, 120335), (205, 96855), (275, 72201), (451, 44025), (587, 33825), (615, 32285), (825, 24067), (1025, 19371), (1353, 14675), (1761, 11275), (2255, 8805), (2935, 6765), (3075, 6457)]