20889225

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4421}}^1$

素因数の和:4447

約数の個数: 48

約数和(自身を含む): 43866240

約数和(自身を除く): 22977015

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4421, 4725, 13263, 22105, 30947, 39789, 66315, 92841, 110525, 119367, 154735, 198945, 278523, 331575, 464205, 596835, 773675, 835569, 994725, 1392615, 2321025, 2984175, 4177845, 6963075, 20889225]

約数ペア:

[(1, 20889225), (3, 6963075), (5, 4177845), (7, 2984175), (9, 2321025), (15, 1392615), (21, 994725), (25, 835569), (27, 773675), (35, 596835), (45, 464205), (63, 331575), (75, 278523), (105, 198945), (135, 154735), (175, 119367), (189, 110525), (225, 92841), (315, 66315), (525, 39789), (675, 30947), (945, 22105), (1575, 13263), (4421, 4725)]