12821319

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1801}}^1$

素因数の和:1927

約数の個数: 24

約数和(自身を含む): 21364512

約数和(自身を除く): 8543193

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 1801, 2373, 5403, 7119, 12607, 16209, 37821, 113463, 203513, 610539, 1424591, 1831617, 4273773, 12821319]

約数ペア:

[(1, 12821319), (3, 4273773), (7, 1831617), (9, 1424591), (21, 610539), (63, 203513), (113, 113463), (339, 37821), (791, 16209), (1017, 12607), (1801, 7119), (2373, 5403)]