215510281

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{3527}}^1$

素因数の和:3613

約数の個数: 24

約数和(自身を含む): 265446720

約数和(自身を除く): 49936439

約数列:

[1, 7, 29, 43, 49, 203, 301, 1247, 1421, 2107, 3527, 8729, 24689, 61103, 102283, 151661, 172823, 715981, 1061627, 4398169, 5011867, 7431389, 30787183, 215510281]

約数ペア:

[(1, 215510281), (7, 30787183), (29, 7431389), (43, 5011867), (49, 4398169), (203, 1061627), (301, 715981), (1247, 172823), (1421, 151661), (2107, 102283), (3527, 61103), (8729, 24689)]