25555551

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{3371}}^1$

素因数の和:3419

約数の個数: 24

約数和(自身を含む): 41111424

約数和(自身を除く): 15555873

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 3371, 7581, 10113, 23597, 64049, 70791, 192147, 448343, 1216931, 1345029, 3650793, 8518517, 25555551]

約数ペア:

[(1, 25555551), (3, 8518517), (7, 3650793), (19, 1345029), (21, 1216931), (57, 448343), (133, 192147), (361, 70791), (399, 64049), (1083, 23597), (2527, 10113), (3371, 7581)]