20506947

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21163}}^1$

素因数の和:21202

約数の個数: 16

約数和(自身を含む): 30476160

約数和(自身を除く): 9969213

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21163, 63489, 359771, 402097, 1079313, 1206291, 6835649, 20506947]

約数ペア:

[(1, 20506947), (3, 6835649), (17, 1206291), (19, 1079313), (51, 402097), (57, 359771), (323, 63489), (969, 21163)]