20198991043

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{100469}}^1$

素因数の和:100867

約数の個数: 24

約数和(自身を含む): 25701833520

約数和(自身を除く): 5502842477

約数列:

[1, 7, 11, 49, 77, 373, 539, 2611, 4103, 18277, 28721, 100469, 201047, 703283, 1105159, 4922981, 7736113, 37474937, 54152791, 262324559, 412224307, 1836271913, 2885570149, 20198991043]

約数ペア:

[(1, 20198991043), (7, 2885570149), (11, 1836271913), (49, 412224307), (77, 262324559), (373, 54152791), (539, 37474937), (2611, 7736113), (4103, 4922981), (18277, 1105159), (28721, 703283), (100469, 201047)]