4991091

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1787}}^1$

素因数の和:1823

約数の個数: 24

約数和(自身を含む): 8153280

約数和(自身を除く): 3162189

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 1787, 2793, 5361, 12509, 33953, 37527, 87563, 101859, 237671, 262689, 713013, 1663697, 4991091]

約数ペア:

[(1, 4991091), (3, 1663697), (7, 713013), (19, 262689), (21, 237671), (49, 101859), (57, 87563), (133, 37527), (147, 33953), (399, 12509), (931, 5361), (1787, 2793)]