19980857547

素因数分解:

$3^3\times 7^3\times {\mathrm{2157527}}^1$

素因数の和:2157557

約数の個数: 32

約数和(自身を含む): 34520448000

約数和(自身を除く): 14539590453

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 3087, 9261, 2157527, 6472581, 15102689, 19417743, 45308067, 58253229, 105718823, 135924201, 317156469, 407772603, 740031761, 951469407, 2220095283, 2854408221, 6660285849, 19980857547]

約数ペア:

[(1, 19980857547), (3, 6660285849), (7, 2854408221), (9, 2220095283), (21, 951469407), (27, 740031761), (49, 407772603), (63, 317156469), (147, 135924201), (189, 105718823), (343, 58253229), (441, 45308067), (1029, 19417743), (1323, 15102689), (3087, 6472581), (9261, 2157527)]