19430668

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{653}}^1$

素因数の和:873

約数の個数: 24

約数和(自身を含む): 35049168

約数和(自身を除く): 15618500

約数列:

[1, 2, 4, 43, 86, 172, 173, 346, 653, 692, 1306, 2612, 7439, 14878, 28079, 29756, 56158, 112316, 112969, 225938, 451876, 4857667, 9715334, 19430668]

約数ペア:

[(1, 19430668), (2, 9715334), (4, 4857667), (43, 451876), (86, 225938), (172, 112969), (173, 112316), (346, 56158), (653, 29756), (692, 28079), (1306, 14878), (2612, 7439)]