661606947

素因数分解:

$3^4\times {\mathrm{181}}^1\times {\mathrm{45127}}^1$

素因数の和:45320

約数の個数: 20

約数和(自身を含む): 993808816

約数和(自身を除く): 332201869

約数列:

[1, 3, 9, 27, 81, 181, 543, 1629, 4887, 14661, 45127, 135381, 406143, 1218429, 3655287, 8167987, 24503961, 73511883, 220535649, 661606947]

約数ペア:

[(1, 661606947), (3, 220535649), (9, 73511883), (27, 24503961), (81, 8167987), (181, 3655287), (543, 1218429), (1629, 406143), (4887, 135381), (14661, 45127)]