209521917

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{705461}}^1$

素因数の和:705481

約数の個数: 16

約数和(自身を含む): 338621760

約数和(自身を除く): 129099843

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 705461, 2116383, 6349149, 7760071, 19047447, 23280213, 69840639, 209521917]

約数ペア:

[(1, 209521917), (3, 69840639), (9, 23280213), (11, 19047447), (27, 7760071), (33, 6349149), (99, 2116383), (297, 705461)]