8400147

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{569}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 13862400

約数和(自身を除く): 5462253

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 569, 703, 777, 1707, 2109, 3983, 4921, 10811, 11949, 14763, 21053, 32433, 63159, 75677, 147371, 227031, 400007, 442113, 1200021, 2800049, 8400147]

約数ペア:

[(1, 8400147), (3, 2800049), (7, 1200021), (19, 442113), (21, 400007), (37, 227031), (57, 147371), (111, 75677), (133, 63159), (259, 32433), (399, 21053), (569, 14763), (703, 11949), (777, 10811), (1707, 4921), (2109, 3983)]