20410551

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2551}}^1$

素因数の和:2691

約数の個数: 24

約数和(自身を含む): 33972224

約数和(自身を除く): 13561673

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2551, 2667, 7653, 8001, 17857, 22959, 53571, 160713, 323977, 971931, 2267839, 2915793, 6803517, 20410551]

約数ペア:

[(1, 20410551), (3, 6803517), (7, 2915793), (9, 2267839), (21, 971931), (63, 323977), (127, 160713), (381, 53571), (889, 22959), (1143, 17857), (2551, 8001), (2667, 7653)]