18539983

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:148

約数の個数: 36

約数和(自身を含む): 24562440

約数和(自身を除く): 6022457

約数列:

[1, 7, 11, 49, 53, 59, 77, 121, 371, 413, 539, 583, 649, 847, 2597, 2891, 3127, 4081, 4543, 5929, 6413, 7139, 21889, 28567, 31801, 34397, 44891, 49973, 153223, 240779, 314237, 349811, 378367, 1685453, 2648569, 18539983]

約数ペア:

[(1, 18539983), (7, 2648569), (11, 1685453), (49, 378367), (53, 349811), (59, 314237), (77, 240779), (121, 153223), (371, 49973), (413, 44891), (539, 34397), (583, 31801), (649, 28567), (847, 21889), (2597, 7139), (2891, 6413), (3127, 5929), (4081, 4543)]