20263019

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 24678720

約数和(自身を除く): 4415701

約数列:

[1, 7, 43, 49, 59, 163, 301, 413, 1141, 2107, 2537, 2891, 7009, 7987, 9617, 17759, 49063, 67319, 124313, 343441, 413531, 471233, 2894717, 20263019]

約数ペア:

[(1, 20263019), (7, 2894717), (43, 471233), (49, 413531), (59, 343441), (163, 124313), (301, 67319), (413, 49063), (1141, 17759), (2107, 9617), (2537, 7987), (2891, 7009)]