251287918

素因数分解:

$2^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:808

約数の個数: 32

約数和(自身を含む): 435817728

約数和(自身を除く): 184529810

約数列:

[1, 2, 7, 14, 211, 257, 331, 422, 514, 662, 1477, 1799, 2317, 2954, 3598, 4634, 54227, 69841, 85067, 108454, 139682, 170134, 379589, 488887, 595469, 759178, 977774, 1190938, 17949137, 35898274, 125643959, 251287918]

約数ペア:

[(1, 251287918), (2, 125643959), (7, 35898274), (14, 17949137), (211, 1190938), (257, 977774), (331, 759178), (422, 595469), (514, 488887), (662, 379589), (1477, 170134), (1799, 139682), (2317, 108454), (2954, 85067), (3598, 69841), (4634, 54227)]