19785289

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 21714880

約数和(自身を除く): 1929591

約数列:

[1, 19, 43, 61, 397, 817, 1159, 2623, 7543, 17071, 24217, 49837, 324349, 460123, 1041331, 19785289]

約数ペア:

[(1, 19785289), (19, 1041331), (43, 460123), (61, 324349), (397, 49837), (817, 24217), (1159, 17071), (2623, 7543)]