427857921

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{21347}}^1$

素因数の和:21501

約数の個数: 24

約数和(自身を含む): 659397024

約数和(自身を除く): 231539103

約数列:

[1, 3, 9, 17, 51, 131, 153, 393, 1179, 2227, 6681, 20043, 21347, 64041, 192123, 362899, 1088697, 2796457, 3266091, 8389371, 25168113, 47539769, 142619307, 427857921]

約数ペア:

[(1, 427857921), (3, 142619307), (9, 47539769), (17, 25168113), (51, 8389371), (131, 3266091), (153, 2796457), (393, 1088697), (1179, 362899), (2227, 192123), (6681, 64041), (20043, 21347)]