20632647

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 32716288

約数和(自身を除く): 12083641

約数列:

[1, 3, 7, 21, 43, 73, 129, 219, 301, 313, 511, 903, 939, 1533, 2191, 3139, 6573, 9417, 13459, 21973, 22849, 40377, 65919, 68547, 94213, 159943, 282639, 479829, 982507, 2947521, 6877549, 20632647]

約数ペア:

[(1, 20632647), (3, 6877549), (7, 2947521), (21, 982507), (43, 479829), (73, 282639), (129, 159943), (219, 94213), (301, 68547), (313, 65919), (511, 40377), (903, 22849), (939, 21973), (1533, 13459), (2191, 9417), (3139, 6573)]