19781091

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{149}}^2$

素因数の和:321

約数の個数: 30

約数和(自身を含む): 32453652

約数和(自身を除く): 12672561

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 149, 297, 447, 891, 1341, 1639, 4023, 4917, 12069, 14751, 22201, 44253, 66603, 132759, 199809, 244211, 599427, 732633, 1798281, 2197899, 6593697, 19781091]

約数ペア:

[(1, 19781091), (3, 6593697), (9, 2197899), (11, 1798281), (27, 732633), (33, 599427), (81, 244211), (99, 199809), (149, 132759), (297, 66603), (447, 44253), (891, 22201), (1341, 14751), (1639, 12069), (4023, 4917)]