17981912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4021}}^1$

素因数の和:4083

約数の個数: 32

約数和(自身を含む): 37163280

約数和(自身を除く): 19181368

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4021, 4472, 8042, 16084, 32168, 52273, 104546, 172903, 209092, 345806, 418184, 691612, 1383224, 2247739, 4495478, 8990956, 17981912]

約数ペア:

[(1, 17981912), (2, 8990956), (4, 4495478), (8, 2247739), (13, 1383224), (26, 691612), (43, 418184), (52, 345806), (86, 209092), (104, 172903), (172, 104546), (344, 52273), (559, 32168), (1118, 16084), (2236, 8042), (4021, 4472)]