19827801

素因数分解:

$3^3\times 7^3\times {\mathrm{2141}}^1$

素因数の和:2171

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 14444199

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 2141, 3087, 6423, 9261, 14987, 19269, 44961, 57807, 104909, 134883, 314727, 404649, 734363, 944181, 2203089, 2832543, 6609267, 19827801]

約数ペア:

[(1, 19827801), (3, 6609267), (7, 2832543), (9, 2203089), (21, 944181), (27, 734363), (49, 404649), (63, 314727), (147, 134883), (189, 104909), (343, 57807), (441, 44961), (1029, 19269), (1323, 14987), (2141, 9261), (3087, 6423)]