21568077

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:553

約数の個数: 24

約数和(自身を含む): 32248320

約数和(自身を除く): 10680243

約数列:

[1, 3, 9, 37, 111, 239, 271, 333, 717, 813, 2151, 2439, 8843, 10027, 26529, 30081, 64769, 79587, 90243, 194307, 582921, 2396453, 7189359, 21568077]

約数ペア:

[(1, 21568077), (3, 7189359), (9, 2396453), (37, 582921), (111, 194307), (239, 90243), (271, 79587), (333, 64769), (717, 30081), (813, 26529), (2151, 10027), (2439, 8843)]