217018930

素因数分解:

$2^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{33751}}^1$

素因数の和:34401

約数の個数: 16

約数和(自身を含む): 391253184

約数和(自身を除く): 174234254

約数列:

[1, 2, 5, 10, 643, 1286, 3215, 6430, 33751, 67502, 168755, 337510, 21701893, 43403786, 108509465, 217018930]

約数ペア:

[(1, 217018930), (2, 108509465), (5, 43403786), (10, 21701893), (643, 337510), (1286, 168755), (3215, 67502), (6430, 33751)]