19814641

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{929}}^1$

素因数の和:1224

約数の個数: 16

約数和(自身を含む): 24819840

約数和(自身を除く): 5005199

約数列:

[1, 7, 11, 77, 277, 929, 1939, 3047, 6503, 10219, 21329, 71533, 257333, 1801331, 2830663, 19814641]

約数ペア:

[(1, 19814641), (7, 2830663), (11, 1801331), (77, 257333), (277, 71533), (929, 21329), (1939, 10219), (3047, 6503)]