20973778

素因数分解:

$2^1\times 7^1\times {\mathrm{1217}}^1\times {\mathrm{1231}}^1$

素因数の和:2457

約数の個数: 16

約数和(自身を含む): 36013824

約数和(自身を除く): 15040046

約数列:

[1, 2, 7, 14, 1217, 1231, 2434, 2462, 8519, 8617, 17038, 17234, 1498127, 2996254, 10486889, 20973778]

約数ペア:

[(1, 20973778), (2, 10486889), (7, 2996254), (14, 1498127), (1217, 17234), (1231, 17038), (2434, 8617), (2462, 8519)]