206542987

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{599}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 249523200

約数和(自身を除く): 42980213

約数列:

[1, 7, 31, 49, 217, 227, 599, 1519, 1589, 4193, 7037, 11123, 18569, 29351, 49259, 129983, 135973, 344813, 909881, 951811, 4215163, 6662677, 29506141, 206542987]

約数ペア:

[(1, 206542987), (7, 29506141), (31, 6662677), (49, 4215163), (217, 951811), (227, 909881), (599, 344813), (1519, 135973), (1589, 129983), (4193, 49259), (7037, 29351), (11123, 18569)]