21047068

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1471}}^1$

素因数の和:1562

約数の個数: 36

約数和(自身を含む): 43462272

約数和(自身を除く): 22415204

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 196, 292, 511, 1022, 1471, 2044, 2942, 3577, 5884, 7154, 10297, 14308, 20594, 41188, 72079, 107383, 144158, 214766, 288316, 429532, 751681, 1503362, 3006724, 5261767, 10523534, 21047068]

約数ペア:

[(1, 21047068), (2, 10523534), (4, 5261767), (7, 3006724), (14, 1503362), (28, 751681), (49, 429532), (73, 288316), (98, 214766), (146, 144158), (196, 107383), (292, 72079), (511, 41188), (1022, 20594), (1471, 14308), (2044, 10297), (2942, 7154), (3577, 5884)]