257540213

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{26993}}^1$

素因数の和:27076

約数の個数: 16

約数和(自身を含む): 310970880

約数和(自身を除く): 53430667

約数列:

[1, 7, 29, 47, 203, 329, 1363, 9541, 26993, 188951, 782797, 1268671, 5479579, 8880697, 36791459, 257540213]

約数ペア:

[(1, 257540213), (7, 36791459), (29, 8880697), (47, 5479579), (203, 1268671), (329, 782797), (1363, 188951), (9541, 26993)]