257161009

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{821}}^1\times {\mathrm{1543}}^1$

素因数の和:2400

約数の個数: 16

約数和(自身を含む): 304600320

約数和(自身を除く): 47439311

約数列:

[1, 7, 29, 203, 821, 1543, 5747, 10801, 23809, 44747, 166663, 313229, 1266803, 8867621, 36737287, 257161009]

約数ペア:

[(1, 257161009), (7, 36737287), (29, 8867621), (203, 1266803), (821, 313229), (1543, 166663), (5747, 44747), (10801, 23809)]