19711431

素因数分解:

$3^7\times {\mathrm{9013}}^1$

素因数の和:9034

約数の個数: 16

約数和(自身を含む): 29565920

約数和(自身を除く): 9854489

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 9013, 27039, 81117, 243351, 730053, 2190159, 6570477, 19711431]

約数ペア:

[(1, 19711431), (3, 6570477), (9, 2190159), (27, 730053), (81, 243351), (243, 81117), (729, 27039), (2187, 9013)]