19968156761

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{1097}}^1\times {\mathrm{136861}}^1$

素因数の和:137984

約数の個数: 16

約数和(自身を含む): 24043916160

約数和(自身を除く): 4075759399

約数列:

[1, 7, 19, 133, 1097, 7679, 20843, 136861, 145901, 958027, 2600359, 18202513, 150136517, 1050955619, 2852593823, 19968156761]

約数ペア:

[(1, 19968156761), (7, 2852593823), (19, 1050955619), (133, 150136517), (1097, 18202513), (7679, 2600359), (20843, 958027), (136861, 145901)]