20854020187

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{393079}}^1$

素因数の和:393163

約数の個数: 32

約数和(自身を含む): 28528174080

約数和(自身を除く): 7674153893

約数列:

[1, 7, 11, 13, 53, 77, 91, 143, 371, 583, 689, 1001, 4081, 4823, 7579, 53053, 393079, 2751553, 4323869, 5110027, 20833187, 30267083, 35770189, 56210297, 145832309, 229165057, 270831431, 393472079, 1604155399, 1895820017, 2979145741, 20854020187]

約数ペア:

[(1, 20854020187), (7, 2979145741), (11, 1895820017), (13, 1604155399), (53, 393472079), (77, 270831431), (91, 229165057), (143, 145832309), (371, 56210297), (583, 35770189), (689, 30267083), (1001, 20833187), (4081, 5110027), (4823, 4323869), (7579, 2751553), (53053, 393079)]