20806511716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{16561}}^1$

素因数の和:16916

約数の個数: 48

約数和(自身を含む): 39102219520

約数和(自身を除く): 18295707804

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 271, 542, 1084, 1159, 2318, 4636, 5149, 10298, 16531, 16561, 20596, 33062, 33122, 66124, 66244, 314089, 314659, 628178, 629318, 1010221, 1256356, 1258636, 2020442, 4040884, 4488031, 8976062, 17952124, 19194199, 38388398, 76776796, 85272589, 170545178, 273769891, 341090356, 547539782, 1095079564, 5201627929, 10403255858, 20806511716]

約数ペア:

[(1, 20806511716), (2, 10403255858), (4, 5201627929), (19, 1095079564), (38, 547539782), (61, 341090356), (76, 273769891), (122, 170545178), (244, 85272589), (271, 76776796), (542, 38388398), (1084, 19194199), (1159, 17952124), (2318, 8976062), (4636, 4488031), (5149, 4040884), (10298, 2020442), (16531, 1258636), (16561, 1256356), (20596, 1010221), (33062, 629318), (33122, 628178), (66124, 314659), (66244, 314089)]