19934439

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1063}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 32686080

約数和(自身を除く): 12751641

約数列:

[1, 3, 7, 19, 21, 47, 57, 133, 141, 329, 399, 893, 987, 1063, 2679, 3189, 6251, 7441, 18753, 20197, 22323, 49961, 60591, 141379, 149883, 349727, 424137, 949259, 1049181, 2847777, 6644813, 19934439]

約数ペア:

[(1, 19934439), (3, 6644813), (7, 2847777), (19, 1049181), (21, 949259), (47, 424137), (57, 349727), (133, 149883), (141, 141379), (329, 60591), (399, 49961), (893, 22323), (987, 20197), (1063, 18753), (2679, 7441), (3189, 6251)]