19720872

素因数分解:

$2^3\times 3^2\times {\mathrm{273901}}^1$

素因数の和:273913

約数の個数: 24

約数和(自身を含む): 53410890

約数和(自身を除く): 33690018

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 273901, 547802, 821703, 1095604, 1643406, 2191208, 2465109, 3286812, 4930218, 6573624, 9860436, 19720872]

約数ペア:

[(1, 19720872), (2, 9860436), (3, 6573624), (4, 4930218), (6, 3286812), (8, 2465109), (9, 2191208), (12, 1643406), (18, 1095604), (24, 821703), (36, 547802), (72, 273901)]