20682773

素因数分解:

${\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 23701248

約数和(自身を除く): 3018475

約数列:

[1, 19, 23, 47, 53, 361, 437, 893, 1007, 1081, 1219, 2491, 8303, 16967, 19133, 20539, 23161, 47329, 57293, 390241, 440059, 899251, 1088567, 20682773]

約数ペア:

[(1, 20682773), (19, 1088567), (23, 899251), (47, 440059), (53, 390241), (361, 57293), (437, 47329), (893, 23161), (1007, 20539), (1081, 19133), (1219, 16967), (2491, 8303)]