84351981

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 138551040

約数和(自身を除く): 54199059

約数列:

[1, 3, 7, 21, 29, 47, 49, 87, 141, 147, 203, 329, 421, 609, 987, 1263, 1363, 1421, 2303, 2947, 4089, 4263, 6909, 8841, 9541, 12209, 19787, 20629, 28623, 36627, 59361, 61887, 66787, 85463, 138509, 200361, 256389, 415527, 573823, 598241, 969563, 1721469, 1794723, 2908689, 4016761, 12050283, 28117327, 84351981]

約数ペア:

[(1, 84351981), (3, 28117327), (7, 12050283), (21, 4016761), (29, 2908689), (47, 1794723), (49, 1721469), (87, 969563), (141, 598241), (147, 573823), (203, 415527), (329, 256389), (421, 200361), (609, 138509), (987, 85463), (1263, 66787), (1363, 61887), (1421, 59361), (2303, 36627), (2947, 28623), (4089, 20629), (4263, 19787), (6909, 12209), (8841, 9541)]