18707985

素因数分解:

$3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{947}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 32535360

約数和(自身を除く): 13827375

約数列:

[1, 3, 5, 9, 15, 45, 439, 947, 1317, 2195, 2841, 3951, 4735, 6585, 8523, 14205, 19755, 42615, 415733, 1247199, 2078665, 3741597, 6235995, 18707985]

約数ペア:

[(1, 18707985), (3, 6235995), (5, 3741597), (9, 2078665), (15, 1247199), (45, 415733), (439, 42615), (947, 19755), (1317, 14205), (2195, 8523), (2841, 6585), (3951, 4735)]