206880021

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{450719}}^1$

素因数の和:450745

約数の個数: 16

約数和(自身を含む): 324518400

約数和(自身を除く): 117638379

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 450719, 1352157, 4056471, 7662223, 12169413, 22986669, 68960007, 206880021]

約数ペア:

[(1, 206880021), (3, 68960007), (9, 22986669), (17, 12169413), (27, 7662223), (51, 4056471), (153, 1352157), (459, 450719)]