1297804557

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3252643}}^1$

素因数の和:3252672

約数の個数: 16

約数和(自身を含む): 2081692160

約数和(自身を除く): 783887603

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 3252643, 9757929, 22768501, 61800217, 68305503, 185400651, 432601519, 1297804557]

約数ペア:

[(1, 1297804557), (3, 432601519), (7, 185400651), (19, 68305503), (21, 61800217), (57, 22768501), (133, 9757929), (399, 3252643)]