20512247261

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{359}}^1\times {\mathrm{491}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 22954752000

約数和(自身を除く): 2442504739

約数列:

[1, 11, 71, 149, 359, 491, 781, 1639, 3949, 5401, 10579, 25489, 34861, 53491, 73159, 116369, 176269, 280379, 383471, 588401, 804749, 1938959, 3797861, 5194289, 12515099, 26264081, 41776471, 57137179, 137666089, 288904891, 1864749751, 20512247261]

約数ペア:

[(1, 20512247261), (11, 1864749751), (71, 288904891), (149, 137666089), (359, 57137179), (491, 41776471), (781, 26264081), (1639, 12515099), (3949, 5194289), (5401, 3797861), (10579, 1938959), (25489, 804749), (34861, 588401), (53491, 383471), (73159, 280379), (116369, 176269)]