1213947

素因数分解:

$3^4\times 7^1\times {\mathrm{2141}}^1$

素因数の和:2160

約数の個数: 20

約数和(自身を含む): 2073456

約数和(自身を除く): 859509

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2141, 6423, 14987, 19269, 44961, 57807, 134883, 173421, 404649, 1213947]

約数ペア:

[(1, 1213947), (3, 404649), (7, 173421), (9, 134883), (21, 57807), (27, 44961), (63, 19269), (81, 14987), (189, 6423), (567, 2141)]