2908689

素因数分解:

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

素因数の和:485

約数の個数: 24

約数和(自身を含む): 4618368

約数和(自身を除く): 1709679

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 421, 987, 1263, 2303, 2947, 6909, 8841, 19787, 20629, 59361, 61887, 138509, 415527, 969563, 2908689]

約数ペア:

[(1, 2908689), (3, 969563), (7, 415527), (21, 138509), (47, 61887), (49, 59361), (141, 20629), (147, 19787), (329, 8841), (421, 6909), (987, 2947), (1263, 2303)]