51335289

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{7121}}^1$

素因数の和:7222

約数の個数: 20

約数和(自身を含む): 77558580

約数和(自身を除く): 26223291

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7121, 7209, 21363, 64089, 192267, 576801, 633769, 1901307, 5703921, 17111763, 51335289]

約数ペア:

[(1, 51335289), (3, 17111763), (9, 5703921), (27, 1901307), (81, 633769), (89, 576801), (267, 192267), (801, 64089), (2403, 21363), (7121, 7209)]