19568661

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 11182059

約数列:

[1, 3, 7, 21, 83, 103, 109, 249, 309, 327, 581, 721, 763, 1743, 2163, 2289, 8549, 9047, 11227, 25647, 27141, 33681, 59843, 63329, 78589, 179529, 189987, 235767, 931841, 2795523, 6522887, 19568661]

約数ペア:

[(1, 19568661), (3, 6522887), (7, 2795523), (21, 931841), (83, 235767), (103, 189987), (109, 179529), (249, 78589), (309, 63329), (327, 59843), (581, 33681), (721, 27141), (763, 25647), (1743, 11227), (2163, 9047), (2289, 8549)]