20805599038

素因数分解:

$2^1\times 7^2\times {\mathrm{73}}^2\times {\mathrm{39839}}^1$

素因数の和:40001

約数の個数: 36

約数和(自身を含む): 36808693920

約数和(自身を除く): 16003094882

約数列:

[1, 2, 7, 14, 49, 73, 98, 146, 511, 1022, 3577, 5329, 7154, 10658, 37303, 39839, 74606, 79678, 261121, 278873, 522242, 557746, 1952111, 2908247, 3904222, 5816494, 20357729, 40715458, 142504103, 212302031, 285008206, 424604062, 1486114217, 2972228434, 10402799519, 20805599038]

約数ペア:

[(1, 20805599038), (2, 10402799519), (7, 2972228434), (14, 1486114217), (49, 424604062), (73, 285008206), (98, 212302031), (146, 142504103), (511, 40715458), (1022, 20357729), (3577, 5816494), (5329, 3904222), (7154, 2908247), (10658, 1952111), (37303, 557746), (39839, 522242), (74606, 278873), (79678, 261121)]