31886379

素因数分解:

$3^4\times 7^1\times {\mathrm{56237}}^1$

素因数の和:56256

約数の個数: 20

約数和(自身を含む): 54438384

約数和(自身を除く): 22552005

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 56237, 168711, 393659, 506133, 1180977, 1518399, 3542931, 4555197, 10628793, 31886379]

約数ペア:

[(1, 31886379), (3, 10628793), (7, 4555197), (9, 3542931), (21, 1518399), (27, 1180977), (63, 506133), (81, 393659), (189, 168711), (567, 56237)]