19725363

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1831}}^1$

素因数の和:1869

約数の個数: 40

約数和(自身を含む): 35467520

約数和(自身を除く): 15742157

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 1831, 3591, 5493, 10773, 12817, 16479, 34789, 38451, 49437, 104367, 115353, 148311, 243523, 313101, 346059, 730569, 939303, 1038177, 2191707, 2817909, 6575121, 19725363]

約数ペア:

[(1, 19725363), (3, 6575121), (7, 2817909), (9, 2191707), (19, 1038177), (21, 939303), (27, 730569), (57, 346059), (63, 313101), (81, 243523), (133, 148311), (171, 115353), (189, 104367), (399, 49437), (513, 38451), (567, 34789), (1197, 16479), (1539, 12817), (1831, 10773), (3591, 5493)]