19912299

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{20807}}^1$

素因数の和:20850

約数の個数: 16

約数和(自身を含む): 29963520

約数和(自身を除く): 10051221

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 20807, 62421, 228877, 603403, 686631, 1810209, 6637433, 19912299]

約数ペア:

[(1, 19912299), (3, 6637433), (11, 1810209), (29, 686631), (33, 603403), (87, 228877), (319, 62421), (957, 20807)]