19706553

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6779}}^1$

素因数の和:6821

約数の個数: 24

約数和(自身を含む): 31730400

約数和(自身を除く): 12023847

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 6779, 20337, 61011, 115243, 128801, 345729, 386403, 1037187, 1159209, 2189617, 6568851, 19706553]

約数ペア:

[(1, 19706553), (3, 6568851), (9, 2189617), (17, 1159209), (19, 1037187), (51, 386403), (57, 345729), (153, 128801), (171, 115243), (323, 61011), (969, 20337), (2907, 6779)]