20977539

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{33457}}^1$

素因数の和:33490

約数の個数: 16

約数和(自身を含む): 32119680

約数和(自身を除く): 11142141

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 33457, 100371, 368027, 635683, 1104081, 1907049, 6992513, 20977539]

約数ペア:

[(1, 20977539), (3, 6992513), (11, 1907049), (19, 1104081), (33, 635683), (57, 368027), (209, 100371), (627, 33457)]