78225021

素因数分解:

$3^4\times 7^2\times {\mathrm{19709}}^1$

素因数の和:19735

約数の個数: 30

約数和(自身を含む): 135939870

約数和(自身を除く): 57714849

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 19709, 59127, 137963, 177381, 413889, 532143, 965741, 1241667, 1596429, 2897223, 3725001, 8691669, 11175003, 26075007, 78225021]

約数ペア:

[(1, 78225021), (3, 26075007), (7, 11175003), (9, 8691669), (21, 3725001), (27, 2897223), (49, 1596429), (63, 1241667), (81, 965741), (147, 532143), (189, 413889), (441, 177381), (567, 137963), (1323, 59127), (3969, 19709)]