19706745

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^2$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 33039936

約数和(自身を除く): 13333191

約数列:

[1, 3, 5, 15, 23, 69, 115, 239, 345, 717, 1195, 3585, 5497, 16491, 27485, 57121, 82455, 171363, 285605, 856815, 1313783, 3941349, 6568915, 19706745]

約数ペア:

[(1, 19706745), (3, 6568915), (5, 3941349), (15, 1313783), (23, 856815), (69, 285605), (115, 171363), (239, 82455), (345, 57121), (717, 27485), (1195, 16491), (3585, 5497)]