19986926

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3433}}^1$

素因数の和:3547

約数の個数: 16

約数和(自身を含む): 31153248

約数和(自身を除く): 11166322

約数列:

[1, 2, 41, 71, 82, 142, 2911, 3433, 5822, 6866, 140753, 243743, 281506, 487486, 9993463, 19986926]

約数ペア:

[(1, 19986926), (2, 9993463), (41, 487486), (71, 281506), (82, 243743), (142, 140753), (2911, 6866), (3433, 5822)]