19704324913

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1\times {\mathrm{6947}}^1$

素因数の和:7477

約数の個数: 32

約数和(自身を含む): 24652615680

約数和(自身を除く): 4948290767

約数列:

[1, 7, 13, 71, 91, 439, 497, 923, 3073, 5707, 6461, 6947, 31169, 39949, 48629, 90311, 218183, 405197, 493237, 632177, 2836379, 3049733, 3452659, 6412081, 21348131, 39646529, 44884567, 216531043, 277525703, 1515717301, 2814903559, 19704324913]

約数ペア:

[(1, 19704324913), (7, 2814903559), (13, 1515717301), (71, 277525703), (91, 216531043), (439, 44884567), (497, 39646529), (923, 21348131), (3073, 6412081), (5707, 3452659), (6461, 3049733), (6947, 2836379), (31169, 632177), (39949, 493237), (48629, 405197), (90311, 218183)]