20210883

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 35458560

約数和(自身を除く): 15247677

約数列:

[1, 3, 7, 11, 21, 29, 33, 49, 77, 87, 147, 203, 231, 319, 431, 539, 609, 957, 1293, 1421, 1617, 2233, 3017, 4263, 4741, 6699, 9051, 12499, 14223, 15631, 21119, 33187, 37497, 46893, 63357, 87493, 99561, 137489, 232309, 262479, 412467, 612451, 696927, 962423, 1837353, 2887269, 6736961, 20210883]

約数ペア:

[(1, 20210883), (3, 6736961), (7, 2887269), (11, 1837353), (21, 962423), (29, 696927), (33, 612451), (49, 412467), (77, 262479), (87, 232309), (147, 137489), (203, 99561), (231, 87493), (319, 63357), (431, 46893), (539, 37497), (609, 33187), (957, 21119), (1293, 15631), (1421, 14223), (1617, 12499), (2233, 9051), (3017, 6699), (4263, 4741)]